egroupware/etemplate/inc/class.etemplate_old.inc.php

<?php
/**
* EGroupware - EditableTemplates - HTML User Interface
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @author Ralf Becker <RalfBecker@outdoor-training.de>
* @copyright 2002-11 by RalfBecker@outdoor-training.de
* @package etemplate
* @subpackage api
* @version $Id$
*/

/**
* creates dialogs / HTML-forms from eTemplate descriptions
*
* Usage example:
*<code>
* $tmpl = new etemplate('app.template.name');
* $tmpl->exec('app.class.callback',$content_to_show);
*</code>
* This creates a form from the eTemplate 'app.template.name' and takes care that
* the method / public function 'callback' in class 'class' of 'app' gets called
* if the user submits the form. For the complete param's see the description of exec.
*
* etemplate or uietemplate extends boetemplate, all vars and public functions are inherited
*/
class etemplate_old extends boetemplate
{
	/**
	* integer debug-level or template-name or cell-type or '' = off
	* 1=calls to show and process_show, 2=content after process_show,
	* 3=calls to show_cell and process_show_cell
	*
	* @public int/string
	*/
	public $debug;
	/**
	* Inner width of browser window
	*
	* @public int
	*/
	public $innerWidth;
	/**
	* Reference to the content-param of the last call to show, for extensions to use
	*
	* @public array
	*/
	public $content;
	/**
	* Reference to the sel_options-param of the last call to show, for extensions to use
	*
	* @public array
	*/
	public $sel_options;
	/**
	* Name of the form of the currently processed etemplate
	*
	* @public string
	*/
	static $name_form='eTemplate';
	/**
	* Used form-names in this request
	*
	* @public array
	*/
	static $name_forms=array();
	/**
	* Basename of the variables (content) in $_POST and id's, usually 'exec',
	* if there's not more then one eTemplate on the page (then it will be exec, exec2, exec3, ...
	*
	* @public string
	*/
	static $name_vars='exec';
	/**
	* Are we running as sitemgr module or not
	*
	* @public boolean
	*/
	public $sitemgr=false;
	/**
	 * Javascript to be called, when a widget get's double-clicked (used only by the editor)
	 * A '%p' gets replace with the colon ':' separated template-name, -version and path of the clicked widget.
	 *
	 * @public string
	 */
	public $onclick_handler;
	/**
	 * Does template processes onclick itself, or forwards it to a proxy
	 *
	 * @var boolean
	 */
	public $no_onclick = false;
	/**
	 * handler to call for onclick
	 *
	 * @var string
	 */
	public $onclick_proxy;

	/**
	 * Extra options for forms, eg. enctype="multipart/form-data"
	 *
	 * @public string
	 */
	static protected $form_options = '';

	/**
	 * Validation errors from process_show and the extensions, should be set via self::set_validation_error
	 *
	 * @public array form_name => message pairs
	 */
	static protected $validation_errors = array();

	/**
	 * Flag if the browser has javascript enabled
	 *
	 * @var boolean
	 */
	static public $java_script;

	/**
	 * Flag if exec() is called as part of a hook, replaces the 1.6 and earlier $GLOBALS['egw_info']['etemplate']['hooked'] global variable
	 *
	 * @var boolean
	 */
	static public $hooked;

	/**
	 * The following 3 static vars are used to allow eTemplate apps to hook into each other
	 *
	 * @var mixed
	 */
	static private $previous_content;
	static private $hook_content;
	static private $hook_app;

	/**
	* constructor of etemplate class, reads an eTemplate if $name is given
	*
	* @param string $name of etemplate or array with name and other keys
	* @param string/array $load_via with keys of other etemplate to load in order to get $name
	*/
	function __construct($name='',$load_via='')
	{
		parent::__construct($name,$load_via);

		$this->sitemgr = isset($GLOBALS['Common_BO']) && is_object($GLOBALS['Common_BO']);

		if (($this->innerWidth = (int) $_POST['innerWidth']))
		{
			$GLOBALS['egw']->session->appsession('innerWidth','etemplate',$this->innerWidth);
		}
		elseif (!($this->innerWidth = (int) $GLOBALS['egw']->session->appsession('innerWidth','etemplate')))
		{
			$this->innerWidth = 1018;	// default width for an assumed screen-resolution of 1024x768
		}
		//echo "<p>_POST[innerWidth]='$_POST[innerWidth]', innerWidth=$this->innerWidth</p>\n";
	}

	/**
	* Abstracts a html-location-header call
	*
	* In other UI's than html this needs to call the methode, defined by menuaction or
	* open a browser-window for any other links.
	*
	* @param string/array $params url or array with get-params incl. menuaction
	*/
	static function location($params='')
	{
		egw::redirect_link(is_array($params) ? '/index.php' : $params,
			is_array($params) ? $params : '');
	}

	/**
	* Generats a Dialog from an eTemplate - abstract the UI-layer
	*
	* This is the only function an application should use, all other are INTERNAL and
	* do NOT abstract the UI-layer, because they return HTML.
	* Generates a webpage with a form from the template and puts process_exec in the
	* form as submit-url to call process_show for the template before it
	* ExecuteMethod's the given $method of the caller.
	*
	* @param string $method Methode (e.g. 'etemplate.editor.edit') to be called if form is submitted
	* @param array $content with content to fill the input-fields of template, eg. the text-field
	* 		with name 'name' gets its content from $content['name']
	* @param $sel_options array or arrays with the options for each select-field, keys are the
	* 		field-names, eg. array('name' => array(1 => 'one',2 => 'two')) set the
	* 		options for field 'name'. ($content['options-name'] is possible too !!!)
	* @param array $readonlys with field-names as keys for fields with should be readonly
	* 		(eg. to implement ACL grants on field-level or to remove buttons not applicable)
	* @param array $preserv with vars which should be transported to the $method-call (eg. an id) array('id' => $id) sets $_POST['id'] for the $method-call
	* @param int $output_mode
	*	 0 = echo incl. navbar
	*	 1 = return html
	*	-1 = first time return html, after use 0 (echo html incl. navbar), eg. for home
	*	 2 = echo without navbar (eg. for popups)
	*	 3 = return eGW independent html site
	* @param string $ignore_validation if not empty regular expression for validation-errors to ignore
	* @param array $changes change made in the last call if looping, only used internaly by process_exec
	* @return string html for $output_mode == 1, else nothing
	*/
	function exec($method,$content,$sel_options='',$readonlys='',$preserv='',$output_mode=0,$ignore_validation='',$changes='')
	{
		//echo "<br>globals[java_script] = '".self::$java_script."', this->java_script() = '".$this->java_script()."'\n";
		if (!$sel_options)
		{
			$sel_options = array();
		}
		if (!$readonlys)
		{
			$readonlys = array();
		}
		if (!$preserv)
		{
			$preserv = array();
		}
		if (!$changes)
		{
			$changes = array();
		}
		if (isset($content['app_header']))
		{
			$GLOBALS['egw_info']['flags']['app_header'] = $content['app_header'];
		}
		if ($GLOBALS['egw_info']['flags']['currentapp'] != 'etemplate')
		{
			$GLOBALS['egw']->translation->add_app('etemplate');	// some extensions have own texts
		}
		// use different form-names to allows multiple eTemplates in one page, eg. addressbook-view
		self::$name_form = 'eTemplate';
		if (in_array(self::$name_form,self::$name_forms))
		{
			self::$name_form .= 1+count(self::$name_forms);
			self::$name_vars .= 1+count(self::$name_forms);
		}
		self::$name_forms[] = self::$name_form;

		self::$request = etemplate_request::read();
		self::$request->output_mode = $output_mode;	// let extensions "know" they are run eg. in a popup
		self::$request->readonlys = $readonlys;
		self::$request->content = $content;
		self::$request->changes = $changes;
		self::$request->sel_options = $sel_options;
		self::$request->preserv = $preserv;
		self::$request->method = $method;
		self::$request->ignore_validation = $ignore_validation;
		self::$request->name_vars = self::$name_vars;

		// tell html5 form validation NOT to validate
		if ($ignore_validation) self::$form_options .= ' novalidate="novalidate"';

		if((int) $output_mode == 3)
		{
			self::$styles_included[$this->name] = True;
			return "<!DOCTYPE html PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'>\n"
				."<html>\n<head>\n".html::style($this->style)."\n</head>\n"
				."<body>\n".$this->show($content)."\n</body>\n</html>";
		}

		$html = $this->include_java_script(1).
				$this->show(self::complete_array_merge($content,$changes),$sel_options,$readonlys,self::$name_vars);

		self::$request->java_script = self::$java_script;
		self::$request->java_script_from_flags = $GLOBALS['egw_info']['flags']['java_script'];
		self::$request->java_script_body_tags = array(
			'onload'   => egw_framework::set_onload(),
			'onunload' => egw_framework::set_onunload(),
			'onresize' => egw_framework::set_onresize(),
		);
		self::$request->java_script_files = egw_framework::js_files();
		self::$request->include_xajax = $GLOBALS['egw_info']['flags']['include_xajax'];

		// check if application of template has a app.js file --> load it
		list($app) = explode('.',$this->name);
		if (file_exists(EGW_SERVER_ROOT.'/'.$app.'/js/app.js'))
		{
			egw_framework::validate_file('.','app',$app,false);
		}

		if (!$this->sitemgr)
		{
			$hooked = isset(self::$previous_content) || !isset($GLOBALS['egw']->template) ?
				self::$previous_content : $GLOBALS['egw']->template->get_var('phpgw_body');
		}
		self::$request->hooked = $hooked ? $hooked : self::$hook_content;
		self::$request->hook_app = $hooked ? $GLOBALS['egw_info']['flags']['currentapp'] : self::$hook_app;
		self::$request->app_header = $GLOBALS['egw_info']['flags']['app_header'];
		if (self::$request->output_mode == -1) self::$request->output_mode = 0;
		self::$request->template = $this->as_array(2);

		$html = html::form(html::input('etemplate_exec_id',self::$request->id(),'hidden',' id="etemplate_exec_id"').$html.
			html::input_hidden(array(
				'submit_button' => '',
				'innerWidth'    => '',
			),'',false),array(),$this->sitemgr ? '' : '/etemplate/process_exec.php?menuaction='.$method,
			'',self::$name_form,self::$form_options.
			// dont set the width of popups!
			($output_mode != 0 ? '' : ' onsubmit="this.innerWidth.value=window.innerWidth ? window.innerWidth : document.body.clientWidth;"'));
			//echo "to_process="; _debug_array(self::$request->to_process);

		//echo '<p>'.__METHOD__."($method,...) etemplate[hooked]=".(int)self::$hooked.", etemplate[hook_app]='".self::$hook_app."', isset(etemplate[content])=".(int)isset(self::$previous_content)."</p>\n";
		if ($this->sitemgr)
		{
			$GLOBALS['egw_info']['flags']['java_script'] .= $this->include_java_script(2);
		}
		else
		{
			// support the old global var, in case old apps like 1.6 infolog use it
			if (isset($GLOBALS['egw_info']['etemplate']['hooked'])) self::$hooked = $GLOBALS['egw_info']['etemplate']['hooked'];

			if (!@self::$hooked && (int) $output_mode != 1 && (int) $output_mode != -1)	// not just returning the html
			{
				$GLOBALS['egw_info']['flags']['java_script'] .= $this->include_java_script(2);

				if ($GLOBALS['egw_info']['flags']['currentapp'] != 'etemplate')
				{
					$css_file = '/etemplate/templates/'.$GLOBALS['egw_info']['server']['template_set'].'/app.css';
					if (!file_exists(EGW_SERVER_ROOT.$css_file))
					{
						$css_file = '/etemplate/templates/default/app.css';
					}
					$GLOBALS['egw_info']['flags']['css'] .= "\n\t\t</style>\n\t\t".'<link href="'.$GLOBALS['egw_info']['server']['webserver_url'].
						$css_file.'?'.filemtime(EGW_SERVER_ROOT.$css_file).'" type="text/css" rel="StyleSheet" />'."\n\t\t<style>\n\t\t\t";
				}
			}
			elseif (!isset(self::$previous_content))
			{
				$html = $this->include_java_script(2).$html;	// better than nothing
			}
			// saving the etemplate content for other hooked etemplate apps (atm. infolog hooked into addressbook)
			self::$previous_content =& $html;
		}
		//echo '<p>'.__METHOD__."($method,...) after show: sitemgr=$this->sitemgr, hooked=".(int)$hooked.", output_mode=$output_mode</p>\n";

		if($output_mode == 2)
		{
			$html .= "\n".'<script language="javascript">'."\n";
			$html .= 'popup_resize();'."\n";
			$html .= '</script>';
		}

		if (!$this->sitemgr && (int) $output_mode != 1 && (int) $output_mode != -1)	// NOT returning html
		{
			if (!@self::$hooked)
			{
				if((int) $output_mode != 2)
				{
					echo $GLOBALS['egw']->framework->navbar();	// do header too
				}
				else
				{
					echo $GLOBALS['egw']->framework->header();
					echo '<div id="popupMainDiv">'."\n";
					if ($GLOBALS['egw_info']['user']['apps']['manual'])	// adding a manual icon to every popup
					{
						$manual = new etemplate_old('etemplate.popup.manual');
						echo $manual->show(array());
						unset($manual);
						echo '<style type="text/css">.ajax-loader { position: absolute; right: 27px; top: 24px; display: none; }</style>'."\n";
						echo '<div class="ajax-loader">'.html::image('phpgwapi','ajax-loader') . '</div>';
					}
				}
			}
			echo self::$hook_content.$html;

			if (!self::$hooked && (!isset($_GET['menuaction']) || strpos($_SERVER['PHP_SELF'],'process_exec.php') !== false))
			{
				if((int) $output_mode == 2)
				{
					echo "</div>\n";
				}
				$GLOBALS['egw']->common->egw_footer();
			}
		}
		if ($this->sitemgr || (int) $output_mode == 1 || (int) $output_mode == -1)	// return html
		{
			return $html;
		}
	}

	/**
	* Check if we have not ignored validation errors
	*
	* @param string $ignore_validation='' if not empty regular expression for validation-errors to ignore
	* @param string $cname=null name-prefix, which need to be ignored, default self::$name_vars
	* @return boolean true if there are not ignored validation errors, false otherwise
	*/
	function validation_errors($ignore_validation='',$cname=null)
	{
		if (is_null($cname)) $cname = self::$name_vars;
		//echo "<p>uiself::validation_errors('$ignore_validation','$cname') validation_error="; _debug_array(self::$validation_errors);
		if (!$ignore_validation) return count(self::$validation_errors) > 0;

		foreach(self::$validation_errors as $name => $error)
		{
			if ($cname) $name = preg_replace('/^'.$cname.'\[([^\]]+)\](.*)$/','\\1\\2',$name);

			// treat $ignoare_validation only as regular expression, if it starts with a slash
			if ($ignore_validation[0] == '/' && !preg_match($ignore_validation,$name) ||
				$ignore_validation[0] != '/' && $ignore_validation != $name)
			{
				//echo "<p>uiself::validation_errors('$ignore_validation','$cname') name='$name' ($error) not ignored!!!</p>\n";
				return true;
			}
			//echo "<p>uiself::validation_errors('$ignore_validation','$cname') name='$name' ($error) ignored</p>\n";
		}
		return false;
	}

	/**
	* Makes the necessary adjustments to _POST before it calls the app's method
	*
	* This function is only to submit forms to, create with exec.
	* All eTemplates / forms executed with exec are submited to this function
	* via /etemplate/process_exec.php?menuaction=<callback>. We cant use the global index.php as
	* it would set some constants to etemplate instead of the calling app.
	* process_exec then calls process_show for the eTemplate (to adjust the content of the _POST) and
	* ExecMethod's the given callback from the app with the content of the form as first argument.
	*
	* @return mixed false if no sessiondata and $this->sitemgr, else the returnvalue of exec of the method-calls
	*/
	function process_exec($etemplate_exec_id = null, $submit_button = null, $exec = null, $type = 'regular' )
	{
		if(!$etemplate_exec_id) $etemplate_exec_id = $_POST['etemplate_exec_id'];
		if(!$submit_button) $submit_button = $_POST['submit_button'];
		if(!$exec) $exec = $_POST;

		//echo "process_exec: _POST ="; _debug_array($_POST);
		if (!$etemplate_exec_id || !(self::$request = etemplate_request::read($etemplate_exec_id)))
		{
			if ($this->sitemgr) return false;
			//echo "uitemplate::process_exec() id='$_POST[etemplate_exec_id]' invalid session-data !!!"; _debug_array($_SESSION);
			// this prevents an empty screen, if the sessiondata gets lost somehow
			$redirect = array(
				'menuaction' => $_GET['menuaction'],
			);
			if (!$_POST && $_SERVER['REQUEST_METHOD'] == 'POST')
			{
				$redirect['post_empty'] = 1;
				// check if we have a failed upload, because user tried to uploaded a file
				// bigger then php.ini setting post_max_size
				// in that case the webserver calls PHP with $_POST === array()
				if (substr($_SERVER['CONTENT_TYPE'],0,19) == 'multipart/form-data' &&
					$_SERVER['CONTENT_LENGTH'] > self::km2int(ini_get('post_max_size')))
				{
					$redirect['failed_upload'] = 1;
					$redirect['msg'] = lang('Error uploading file!')."\n".self::max_upload_size_message();
				}
			} else if ($_SERVER['REQUEST_METHOD'] == 'GET') {
				// Pass along any parameters
				$redirect = $_GET;
			}
			$this->location($redirect);
		}
		self::$name_vars = self::$request->name_vars;
		if (isset($submit_button) && !empty($submit_button))
		{
			self::set_array($exec,$submit_button,'pressed');
		}
		$content = $exec[self::$name_vars];
		if (!is_array($content))
		{
			$content = array();
		}
		$this->init(self::$request->template);
		self::$java_script = self::$request->java_script || $_POST['java_script'];
		//echo "globals[java_script] = '".self::$java_script."', session_data[java_script] = '".self::$request->java_script."', _POST[java_script] = '".$_POST['java_script']."'\n";
		//echo "process_exec($this->name) content ="; _debug_array($content);
		if ($GLOBALS['egw_info']['flags']['currentapp'] != 'etemplate')
		{
			$GLOBALS['egw']->translation->add_app('etemplate');	// some extensions have own texts
		}
		$this->process_show($content,self::$request->to_process,self::$name_vars,$type);

		self::$loop |= !$this->canceled && $this->button_pressed &&
			$this->validation_errors(self::$request->ignore_validation);	// set by process_show

		// If a tab has an error on it, change to that tab
		foreach(self::$validation_errors as $form_name => $msg)
		{
			$name = $this->template_name($form_name);
			if (!$this->get_widget_by_name($name))
			{
				foreach($this->get_widgets_by_type('tab') as $widget)
				{
					$tab_name = $tabs = $widget['name'];
					if (strpos($tabs,'=') !== false) list($tab_name,$tabs) = explode('=',$tabs,2);
					foreach(explode('|',$tabs) as $tab)
					{
						if (strpos('.',$tab) === false) $tab = $this->name.'.'.$tab;
						$tab_tpl = new etemplate_old($tab);
						if ($tab_tpl->get_widget_by_name($name))
						{
							$content[$tab_name] = $tab;
							break 3;
						}
						elseif($name[0] == '#')
						{
							foreach($tab_tpl->get_widgets_by_type('customfields') as $cf_widget)
							{
								if (empty($cf_widget['name']))
								{
									$content[$tab_name] = $tab;
									break 4;
								}
							}
						}
					}
				}
				// widget NOT found --> as last resort add valdation message to $content['msg']
				$content['msg'] .= ($content['msg'] ? "\n" : '').$msg;
			}
		}

		//echo "process_exec($this->name) process_show(content) ="; _debug_array($content);
		//echo "process_exec($this->name) session_data[changes] ="; _debug_array(self::$request->changes);
		$content = self::complete_array_merge(self::$request->changes,$content);
		//echo "process_exec($this->name) merge(changes,content) ="; _debug_array($content);

		if (self::$loop && $type == 'regular')	// only loop for regular (not ajax_submit) requests
		{
			if (self::$request->hooked != '')	// set previous phpgw_body if we are called as hook
			{
				self::$hook_content = self::$request->hooked;
				$GLOBALS['egw_info']['flags']['currentapp'] = self::$hook_app = self::$request->hook_app;
			}
			if(self::$request->include_xajax) $GLOBALS['egw_info']['flags']['include_xajax'] = true;

			if (!empty(self::$request->app_header))
			{
				$GLOBALS['egw_info']['flags']['app_header'] = self::$request->app_header;
			}

			$GLOBALS['egw_info']['flags']['java_script'] .= self::$request->java_script_from_flags;
			if (!empty(self::$request->java_script_body_tags))
			{
				foreach (self::$request->java_script_body_tags as $tag => $code)
				{
					call_user_func('egw_framework::set_'.$tag,$code);
				}
			}
			if (is_array(self::$request->java_script_files))
			{
				$files = egw_framework::js_files();
				if (is_array($files))
				{
					$files = array_unique(array_merge($files,self::$request->java_script_files));
				}
				else
				{
					$files = self::$request->java_script_files;
				}
				egw_framework::js_files($files);
			}

			//echo "<p>process_exec($this->name): <font color=red>loop is set</font>, content=</p>\n"; _debug_array(self::complete_array_merge(self::$request->content,$content));
			return $this->exec(self::$request->method,self::complete_array_merge(self::$request->content,$content),
				self::$request->sel_options,self::$request->readonlys,self::$request->preserv,
				self::$request->output_mode,self::$request->ignore_validation,$content);
		}
		else
		{
			//echo "<p>process_exec($this->name): calling ".($type == 'regular' ? self::$request->method : $_GET['menuaction'])."</p>\n";
			return ExecMethod($type == 'regular' ? self::$request->method : $_GET['menuaction'],
				self::complete_array_merge(self::$request->preserv,$content));
		}
	}

	/**
	 * Message containing the max Upload size from the current php.ini settings
	 *
	 * We have to take the smaler one of upload_max_filesize AND post_max_size-2800 into account.
	 * memory_limit does NOT matter any more, because of the stream-interface of the vfs.
	 *
	 * @param int &$max_upload=null on return max. upload size in byte
	 * @return string
	 */
	static function max_upload_size_message(&$max_upload=null)
	{
		$upload_max_filesize = ini_get('upload_max_filesize');
		$post_max_size = ini_get('post_max_size');
		$max_upload = min(self::km2int($upload_max_filesize),self::km2int($post_max_size)-2800);

		return lang('Maximum size for uploads').': '.egw_vfs::hsize($max_upload).
			" (php.ini: upload_max_filesize=$upload_max_filesize, post_max_size=$post_max_size)";
	}

	/**
	 * Convert numbers like '32M' or '512k' to integers
	 *
	 * @param string $size
	 * @return int
	 */
	private static function km2int($size)
	{
		if (!is_numeric($size))
		{
			switch(strtolower(substr($size,-1)))
			{
				case 'm':
					$size = 1024*1024*(int)$size;
					break;
				case 'k':
					$size = 1024*(int)$size;
					break;
			}
		}
		return (int)$size;
	}

	/**
	* process the values transfered with the javascript function values2url
	*
	* The returned array contains the preserved values overwritten (only!) with the variables named in values2url
	*
	* @return array/boolean content array or false on error
	*/
	function process_values2url()
	{
		//echo "process_exec: _GET ="; _debug_array($_GET);
		if (!$_GET['etemplate_exec_id'] || !($request = etemplate_request::read($_GET['etemplate_exec_id'])))
		{
			return false;
		}
		self::$name_vars = $request->name_vars;

		$content = $_GET[self::$name_vars];
		if (!is_array($content))
		{
			$content = array();
		}
		$this->process_show($content,$request->to_process,self::$name_vars);

		return self::complete_array_merge($request->preserv,$content);
	}

	/**
	 * Flag if the styles of a certain template are already included
	 *
	 * @var array template-name => boolean
	 */
	static private $styles_included = array();

	/**
	* creates HTML from an eTemplate
	*
	* This is done by calling show_cell for each cell in the form. show_cell itself
	* calls show recursivly for each included eTemplate.
	* You could use it in the UI-layer of an app, just make shure to call process_show !!!
	* This is intended as internal function and should NOT be called by new app's direct,
	* as it deals with HTML and is so UI-dependent, use exec instead.
	*
	* @internal
	* @param array $content with content for the cells, keys are the names given in the cells/form elements
	* @param array $sel_options with options for the selectboxes, keys are the name of the selectbox
	* @param array $readonlys with names of cells/form-elements to be not allowed to change
	* 		This is to facilitate complex ACL's which denies access on field-level !!!
	* @param string $cname basename of names for form-elements, means index in $_POST
	* 		eg. $cname='cont', element-name = 'name' returned content in $_POST['cont']['name']
	* @param string $show_c name/index for name expansion
	* @param string $show_row name/index for name expansion
	* @return string the generated HTML
	*/
	function show($content,$sel_options='',$readonlys='',$cname='',$show_c=0,$show_row=0)
	{
		if (!$sel_options)
		{
			$sel_options = array();
		}
		// make it globaly availible for show_cell and show_grid, or extensions
		$this->sel_options =& $sel_options;

		if (!$readonlys)
		{
			$readonlys = array();
		}
		if (++$this->already_showed > 1) return '';	// prefens infinit self-inclusion

		if (is_int($this->debug) && $this->debug >= 1 || $this->name && $this->debug == $this->name)
		{
			echo "<p>etemplate.show($this->name): $cname =\n"; _debug_array($content);
			echo "readonlys="; _debug_array($readonlys);
		}
		if (!is_array($content))
		{
			$content = array();	// happens if incl. template has no content
		}
		// make the content availible as class-public for extensions
		$this->content =& $content;

		$html = "\n\n<!-- BEGIN eTemplate $this->name -->\n<div id=\"".str_replace('"','&quot;',$this->name)."\">\n\n";
		if (!self::$styles_included[$this->name])
		{
			self::$styles_included[$this->name] = True;
			$html .= html::style($this->style)."\n\n";
		}
		$path = '/';
		foreach ($this->children as $n => $child)
		{
			$h = $this->show_cell($child,$content,$readonlys,$cname,$show_c,$show_row,$nul,$class,$path.$n);
			$html .= $class || $child['align'] ? html::div($h,html::formatOptions(array(
				$class,
				$child['align'],
			),'class,align')) : $h;
		}
		return $html."\n</div>\n<!-- END eTemplate $this->name -->\n\n";
	}

	/**
	* Get the color of a category
	*
	* For multiple cats, the first with a color is used
	*
	* @param int/string $cats multiple comma-separated cat_id's
	* @return string
	*/
	static function cats2color($cats)
	{
		static $cat2color;

		if (!$cats) return null;

		if (isset($cat2color[$cats]))
		{
			return $cat2color[$cats];
		}

		foreach(explode(',',$cats) as $cat)
		{
			if (isset($cat2color[$cat]))
			{
				return $cat2color[$cat];
			}
			$data = categories::id2name($cat,'data');

			if (($color = $data['color']))
			{
				//echo "<p>cats2color('$cats')=$color</p>\n";
				return $cat2color[$cats] = $cat2color[$cat] = $color;
			}
		}
		return null;
	}

	/**
	* creates HTML from an eTemplate
	*
	* This is done by calling show_cell for each cell in the form. show_cell itself
	* calls show recursivly for each included eTemplate.
	* You can use it in the UI-layer of an app, just make shure to call process_show !!!
	* This is intended as internal function and should NOT be called by new app's direct,
	* as it deals with HTML and is so UI-dependent, use exec instead.
	*
	* @internal
	* @param array $grid representing a grid
	* @param array $content with content for the cells, keys are the names given in the cells/form elements
	* @param array $readonlys with names of cells/form-elements to be not allowed to change
	* 		This is to facilitate complex ACL's which denies access on field-level !!!
	* @param string $cname basename of names for form-elements, means index in $_POST
	*		eg. $cname='cont', element-name = 'name' returned content in $_POST['cont']['name']
	* @param string $show_c name/index for name expansion
	* @param string $show_row name/index for name expansion
	* @param string $path path in the widget tree
	* @return string the generated HTML
	*/
	private function show_grid(&$grid,$content,$readonlys='',$cname='',$show_c=0,$show_row=0,$path='')
	{
		if (!$readonlys)
		{
			$readonlys = array();
		}
		if (is_int($this->debug) && $this->debug >= 2 || $grid['name'] && $this->debug == $grid['name'] ||
			$this->name && $this->debug == $this->name)
		{
			echo "<p>etemplate.show_grid($grid[name]): $cname =\n"; _debug_array($content);
		}
		if (!is_array($content))
		{
			$content = array();	// happens if incl. template has no content
		}
		$content += array(	// for var-expansion in names in show_cell
			'.c' => $show_c,
			'.col' => $this->num2chrs($show_c-1),
			'.row' => $show_row
		);
		$rows = array();

		$data = &$grid['data'];
		reset($data);
		if (isset($data[0]))
		{
			list(,$opts) = each($data);
		}
		else
		{
			$opts = array();
		}
		$row_id = $content['_row_id'];

		$max_cols = $grid['cols'];
		for ($r = 0; $row = 1+$r /*list($row,$cols) = each($data)*/; ++$r)
		{
			if (!(list($r_key) = each($data)))	// no further row
			{
				if (!(($this->autorepeat_idx($cols['A'],0,$r,$idx,$idx_cname,false,$content) && $idx_cname) ||
						(substr($cols['A']['type'],1) == 'box' && $this->autorepeat_idx($cols['A'][1],0,$r,$idx,$idx_cname,false,$content) && $idx_cname) ||
					($this->autorepeat_idx($cols['B'],1,$r,$idx,$idx_cname,false,$content) && $idx_cname)) ||
					!$this->isset_array($content,$idx_cname))
				{
					break;                     	// no auto-row-repeat
				}
			}
			else
			{
				$cols = &$data[$r_key];
				$part = '';	// '' = body-prefix
				list($height,$disabled,$part) = explode(',',$opts["h$row"]);
				$class = $opts["c$row"];
			}
			if ($disabled != '' && $this->check_disabled($disabled,$content,$r))
			{
				continue;	// row is disabled
			}
			if ($part) $row = $part[0].$row;	// add part prefix
			$rows[".$row"] .= html::formatOptions($height,'height');
			list($cl) = explode(',',$class);
			if ($cl == '@' || $cl && strpos($cl,'$') !== false)
			{
				$cl = $this->expand_name($cl,0,$r,$content['.c'],$content['.row'],$content);
				if (!$cl || preg_match('/(^| )([0-9,]+)( |$)/',$cl,$matches))
				{
					if (($color = $this->cats2color($matches[2])))
					{
						$rows[".$row"] .= ' style="background-color: '.$color.';"';
					}
					$cl = str_replace($matches[2],'row',$cl);
				}
			}
			if ($cl == 'nmr' || substr($cl,0,3) == 'row')	// allow to have further classes behind row
			{
				$cl = 'row_'.($nmr_alternate++ & 1 ? 'off' : 'on').substr($cl,3); // alternate color
			}
			$cl = isset(self::$class_conf[$cl]) ? self::$class_conf[$cl] : $cl;
			$rows[".$row"] .= html::formatOptions($cl,'class');
			$rows[".$row"] .= html::formatOptions($class,',valign');
			// set row-id, if requested
			if ($row_id && isset($content[$r][$row_id]))
			{
				$rows[".$row"] .= ' id="'.htmlspecialchars($content[$r][$row_id]).'"';
			}
			reset ($cols);
			$row_data = array();
			for ($c = 0; True /*list($col,$cell) = each($cols)*/; ++$c)
			{
				$col = $this->num2chrs($c);
				if (!(list($c_key) = each($cols)))		// no further cols
				{
					// only check if the max. column-number reached so far is exeeded
					// otherwise the rows have a differen number of cells and it saved a lot checks
					if ($c >= $max_cols)
					{
						if (!$this->autorepeat_idx($cell,$c,$r,$idx,$idx_cname,True,$content) ||
							!$this->isset_array($content,$idx))
						{
							break;	// no auto-col-repeat
						}
						$max_cols = $c+1;
					}
				}
				else
				{
					$cell = $cols[$c_key];
					list($col_width,$col_disabled) = explode(',',$opts[$col]);

					if (!$cell['height'])	// if not set, cell-height = height of row
					{
						$cell['height'] = $height;
					}
					if (!$cell['width'])	// if not set, cell-width = width of column or table
					{
						list($col_span) = explode(',',$cell['span']);
						if ($col_span == 'all' && !$c)
						{
							list($cell['width']) = explode(',',$this->size);
						}
						else
						{
							$cell['width'] = $col_width;
						}
					}
				}
				if ($col_disabled != '' && $this->check_disabled($col_disabled,$content,$r,$c))
				{
					continue;	// col is disabled
				}
				$align_was = $cell['align'];
				$row_data[$col] = $this->show_cell($cell,$content,$readonlys,$cname,$c,$r,$span,$cl,$path.'/'.$r_key.$c_key);

				if ($row_data[$col] == '' && $this->rows == 1)
				{
					unset($row_data[$col]);	// omit empty/disabled cells if only one row
					continue;
				}
				if (strlen($cell['onclick']) > 1)
				{
					$onclick = $cell['onclick'];
					if (strpos($onclick,'$') !== false || $onclick[0] == '@')
					{
						$onclick = $this->expand_name($onclick,$c,$r,$content['.c'],$content['.row'],$content);
					}
					$row_data[".$col"] .= ' onclick="'.$this->js_pseudo_funcs($onclick,$cname).'"' .self::get_id('',$cell['name'],$cell['id']);
				}
				$colspan = $span == 'all' ? $grid['cols']-$c : 0+$span;
				if ($colspan > 1)
				{
					$row_data[".$col"] .= " colspan=\"$colspan\"";
					for ($i = 1; $i < $colspan; ++$i,++$c)
					{
						each($cols);	// skip next cell(s)
					}
				}
				else
				{
					list($width,$disable) = explode(',',$opts[$col]);
					if ($width)		// width only once for a non colspan cell
					{
						$row_data[".$col"] .= " width=\"$width\"";
						$opts[$col] = "0,$disable";
					}
				}
				$row_data[".$col"] .= html::formatOptions($cell['align']?$cell['align']:($align_was?$align_was:'left'),'align');
				// allow to set further attributes in the tablecell, beside the class
				if (is_array($cl))
				{
					foreach($cl as $attr => $val)
					{
						if ($attr != 'class' && $val)
						{
							$row_data['.'.$col] .= ' '.$attr.'="'.$val.'"';
						}
					}
					$cl = $cl['class'];
				}
				$cl = $this->expand_name(isset(self::$class_conf[$cl]) ? self::$class_conf[$cl] : $cl,
					$c,$r,$show_c,$show_row,$content);
				// else the class is set twice, in the table and the table-cell, which is not good for borders
				if ($cl && $cell['type'] != 'template' && $cell['type'] != 'grid')
				{
					$row_data[".$col"] .= html::formatOptions($cl,'class');
				}
			}
			$rows[$row] = $row_data;
		}
		if (!$rows) return '';

		list($width,$height,,,,,$overflow) = $options = explode(',',$grid['size']);
		if ($overflow && $height)
		{
			$options[1] = '';	// set height in div only
		}
		$html = html::table($rows,html::formatOptions($options,'width,height,border,class,cellspacing,cellpadding').
			html::formatOptions($grid['span'],',class').
			html::formatOptions($grid['name']?self::form_name($cname,$grid['name']):'','id'));

		if (!empty($overflow))
		{
			if (is_numeric($height)) $height .= 'px';
			if (is_numeric($width)) $width .= 'px';
			if ($width == '100%') $overflow .= '; overflow-x: hidden';	// no horizontal scrollbar
			$div_style=' style="'.($width?"width: $width; ":'').($height ? "height: $height; ":'')."overflow: $overflow;\"";
			$html = html::div($html,$div_style);
		}

		// initialise egw_actions for nextmatch widget, if egwGridView_grid CSS class set
		if ($options[3] == 'egwGridView_grid')
		{
			$html .= nextmatch_widget::init_egw_actions($content['_actions'], $content['action_links'], $this->name);
		}

		return "\n\n<!-- BEGIN grid $grid[name] -->\n$html<!-- END grid $grid[name] -->\n\n";
	}

	/**
	* build the name of a form-element from a basename and name
	*
	* name and basename can contain sub-indices in square bracets, eg. basename="base[basesub1][basesub2]"
	* and name = "name[sub]" gives "base[basesub1][basesub2][name][sub]"
	*
	* @param string $cname basename
	* @param string $name name
	* @return string complete form-name
	*/
	static function form_name($cname,$name)
	{
		if(is_object($name)) return '';

		$name_parts = explode('[',str_replace(']','',$name));
		if (!empty($cname))
		{
			array_unshift($name_parts,$cname);
		}
		$form_name = array_shift($name_parts);
		if (count($name_parts))
		{
			$form_name .= '['.implode('][',$name_parts).']';
		}
		return $form_name;
	}

	/**
	* strip the prefix of a form-element from a form_name
	* This function removes the prefix of form_name().  It takes a name like base[basesub1][basesub2][name][sub]
	* and gives basesub1[basesub2][name][sub]
	*
	* @param string form_name
	* @return string name without prefix
	*/
	static private function template_name($form_name)
	{
		$parts = explode('[',str_replace(']','',$form_name));

		array_shift($parts);	// remove exec

		$name = array_shift($parts);

		if ($parts) $name .= '['.implode('][',$parts).']';

		return $name;
	}

	static private $class_conf = array('nmh' => 'th','nmr0' => 'row_on','nmr1' => 'row_off');

	/**
	* generates HTML for one widget (input-field / cell)
	*
	* calls show to generate included eTemplates. Again only an INTERMAL function.
	*
	* @internal
	* @param array $cell with data of the cell: name, type, ...
	* @param array $content with content for the cells, keys are the names given in the cells/form elements
	* @param array $readonlys with names of cells/form-elements to be not allowed to change
	* 		This is to facilitate complex ACL's which denies access on field-level !!!
	* @param string $cname basename of names for form-elements, means index in $_POST
	*		eg. $cname='cont', element-name = 'name' returned content in $_POST['cont']['name']
	* @param string $show_c name/index for name expansion
	* @param string $show_row name/index for name expansion
	* @param string &$span on return number of cells to span or 'all' for the rest (only used for grids)
	* @param string &$class on return the css class of the cell, to be set in the <td> tag
	* @param string $path path in the widget tree
	* @return string the generated HTML
	*/
	private function show_cell(&$cell,$content,$readonlys,$cname,$show_c,$show_row,&$span,&$class,$path='')
	{
		if ($this->debug && (is_int($this->debug) && $this->debug >= 3 || $this->debug == $cell['type']))
		{
			echo "<p>etemplate.show_cell($this->name,name='${cell['name']}',type='${cell['type']}',cname='$cname',...,'$path')</p>\n";
		}
		list($span) = explode(',',$cell['span']);	// evtl. overriten later for type template

		if ($cell['name'][0] == '@' && $cell['type'] != 'template')
		{
			$cell['name'] = $this->get_array($content,$this->expand_name(substr($cell['name'],1),
				$show_c,$show_row,$content['.c'],$content['.row'],$content));
		}
		$name = $this->expand_name($cell['name'],$show_c,$show_row,$content['.c'],$content['.row'],$content);
		// allow names like "tabs=one|two|three", which will be equal to just "tabs"
		// eg. for tabs to use a name independent of the tabs contained
		if (is_string($name) && strpos($name,'=') !== false)
		{
			list($name) = explode('=',$name);
		}
		$form_name = self::form_name($cname,$name);

		$value = $this->get_array($content,$name);

		$options = '';
		if ($readonly = $cell['readonly'] && $readonlys[$name] !== false || 	// allow to overwrite readonly settings of a cell
			@$readonlys[$name] && !is_array($readonlys[$name]) || $readonlys['__ALL__'] && (!is_string($name) || $readonlys[$name] !== false) ||
			!empty($name) && is_string($name) && ($p = strrpos($name,'[')) !== false && ($parent=substr($name,0,$p)) && $readonlys[$parent])	// allow also set parent readonly (instead each child)
		{
			$options .= ' readonly="readonly"';
		}
		if ((int) $cell['tabindex']) $options .= ' tabindex="'.(int)$cell['tabindex'].'"';
		if ($cell['accesskey']) $options .= ' accesskey="'.html::htmlspecialchars($cell['accesskey']).'"';

		if (is_string($cell['size']) && (strchr($cell['size'],'$') || $cell['size'][0] == '@'))	// expand cell['size'] for the button-disabled-check now
		{
			$cell['size'] = $this->expand_name($cell['size'],$show_c,$show_row,$content['.c'],$content['.row'],$content);
		}
		if ($cell['disabled'] && $readonlys[$name] !== false || $readonly && in_array($cell['type'],array('button','buttononly','image','progress')) && strpos($cell['size'],',') === false)
		{
			if ($this->rows == 1)
			{
				return '';	// if only one row omit cell
			}
			$cell = $this->empty_cell('label','',array('span' => $cell['span'])); // show nothing (keep the css class!)
			$name = $value = '';
		}
		$extra_label = True;

		if (strchr($cell['onchange'],'$') || $cell['onchange'][0] == '@')
		{
			$cell['onchange'] = $this->expand_name($cell['onchange'],$show_c,$show_row,$content['.c'],$content['.row'],$content);
		}
		// the while loop allows to build extensions from other extensions
		// please note: only the first extension's post_process function is called !!!
		list($type,$sub_type) = explode('-',$cell['type']);
		while ((!self::$types[$cell['type']] || !empty($sub_type)) && $this->haveExtension($type,'pre_process'))
		{
			//echo "<p>pre_process($cell[name]/$cell[type])</p>\n";
			if (is_string($cell['size']) && (strchr($cell['size'],'$') || $cell['size'][0] == '@'))
			{
				$cell['size'] = $this->expand_name($cell['size'],$show_c,$show_row,$content['.c'],$content['.row'],$content);
			}
			if (strchr($cell['onchange'],'$') || $cell['onchange'][0] == '@')
			{
				$cell['onchange'] = $this->expand_name($cell['onchange'],$show_c,$show_row,$content['.c'],$content['.row'],$content);
			}
			if (!$ext_type) $ext_type = $type;
			// if readonlys[__ALL__] is set, also set readonlys[$name] (extensions can mark themselfs as 'noReadonlysALL', eg. tab-widget!)
			if ($readonlys['__ALL__'] && !$this->haveExtension($type,'noReadonlysALL'))
			{
				$readonlys[$name] = true;
			}
			$extra_label = $this->extensionPreProcess($type,$form_name,$value,$cell,$readonlys[$name]);

			$readonly = $cell['readonly'] !== false && ($readonly || $cell['readonly']);	// might be set or unset (===false) by extension

			self::set_array($content,$name,$value);

			if ($cell['type'] == $type.'-'.$sub_type) break;	// stop if no further type-change

			list($type,$sub_type) = explode('-',$cell['type']);
		}
		list(,$class) = explode(',',$cell['span']);	// might be set by extension
		if (strchr($class,'$') || $class[0] == '@')
		{
			$class = $this->expand_name($class,$show_c,$show_row,$content['.c'],$content['.row'],$content);
		}
		if ($cell['needed'] && !in_array($cell['type'],array('button','buttononly')))
		{
			$class .= ' inputRequired';
		}
		$cell_options = $cell['size'];
		if (strchr($cell_options,'$') || $cell_options[0] == '@')
		{
			$cell_options = $this->expand_name($cell_options,$show_c,$show_row,$content['.c'],$content['.row'],$content);
		}
		$label = $cell['label'];
		if (strchr($label,'$') || $label[0] == '@')
		{
			$label = $this->expand_name($label,$show_c,$show_row,$content['.c'],$content['.row'],$content);
		}
		$help = $cell['help'];
		if (strchr($help,'$') || $help[0] == '@')
		{
			$no_lang_on_help = true;
			$help = $this->expand_name($help,$show_c,$show_row,$content['.c'],$content['.row'],$content);
		}
		$blur = $cell['blur'][0] == '@' ? $this->get_array($content,substr($cell['blur'],1)) :
			(strlen($cell['blur']) <= 1 ? $cell['blur'] : lang($cell['blur']));

		if ($this->java_script())
		{
			if ($blur)
			{
				if ((string)$value === '')
				{
					$value = $blur;
				}
				$onFocus .= "if(this.value=='".addslashes(html::htmlspecialchars($blur))."') this.value='';";
				$onBlur  .= "if(this.value=='') this.value='".addslashes(html::htmlspecialchars($blur))."';";
			}
			if ($help)
			{
				if ((int)$cell['no_lang'] < 2 && !$no_lang_on_help)
				{
					if (($use_tooltip_for_help = $help[0] == '|')) $help = substr($help,1);
					$help = lang($help);
				}
				if (substr($help,0,5) == 'call:')
				{
					$options .= ' onMouseOver="'.html::htmlspecialchars(substr($help,5)).'"';
				}
				elseif (($use_tooltip_for_help = $use_tooltip_for_help || strpos($help,'<') !== false && strip_tags($help) != $help))	// helptext is html => use a tooltip
				{
					$options .= html::tooltip($help);
				}
				else	// "regular" help-text in the statusline
				{
					$onFocus .= "self.status='".addslashes(html::htmlspecialchars($help))."'; return true;";
					$onBlur  .= "self.status=''; return true;";
					if (in_array($cell['type'],array('button','buttononly','file')))	// for button additionally when mouse over button
					{
						$options .= " onMouseOver=\"self.status='".addslashes(html::htmlspecialchars($help))."'; return true;\"";
						$options .= " onMouseOut=\"self.status=''; return true;\"";
					}
				}
			}
			if ($onBlur)
			{
				$options .= " onFocus=\"$onFocus\" onBlur=\"$onBlur\"";
			}
			if ($cell['onchange'] && !($cell['type'] == 'button' || $cell['type'] == 'buttononly'))
			{
				$onchange = $cell['onchange'] == '1' ? 'this.form.submit();' : $this->js_pseudo_funcs($cell['onchange'],$cname);
				// rewriting onchange for checkboxes for IE to an onclick
				if ($cell['type'] == 'checkbox' && html::$user_agent == 'msie')
				{
					$options .= ' onClick="'.$onchange.'; return true;"';
				}
				else
				{
					$options .= ' onChange="'.$onchange.'"';
				}
			}
		}
		if ($form_name != '')
		{
			$options = self::get_id($form_name,$cell['name'],$cell['id']).' '.$options;
		}
		switch ($type)
		{
			case 'label':	//  size: [b[old]][i[talic]],[link],[activate_links],[label_for],[link_target],[link_popup_size],[link_title]
				if (is_array($value)) break;
				list($style,$extra_link,$activate_links,$label_for,$extra_link_target,$extra_link_popup,$extra_link_title) = explode(',',$cell_options,7);
				$value = strlen($value) > 1 && !$cell['no_lang'] ? lang($value) : $value;
				$value = nl2br(html::htmlspecialchars($value));
				if ($activate_links) $value = html::activate_links($value);
				if ($value != '' && $style && strpos($style,'b')!==false) $value = html::bold($value);
				if ($value != '' && $style && strpos($style,'i')!==false) $value = html::italic($value);
				// if the label has a name, use it as id in a span, to allow addressing it via javascript
				$html .= ($name ? '<span id="'.($cell['id']?$cell['id']:$name).'">' : '').$value.($name ? '</span>' : '');
				if ($help)
				{
					$class = array(
						'class'       => $class,
						'onmouseover' => "self.status='".addslashes(html::htmlspecialchars($help))."'; return true;",
						'onmouseout'  => "self.status=''; return true;",
					);
				}
				break;
			case 'html':	//  size: [link],[link_target],[link_popup_size],[link_title],[activate_links]
				list($extra_link,$extra_link_target,$extra_link_popup,$extra_link_title,$activate_links) = explode(',',$cell_options);
				if ($activate_links) $value = html::activate_links($value);
				$html .= $value;
				break;
			case 'int':		// size: [min],[max],[len],[precision/sprint format],[step]
			case 'float':
				list($min,$max,$cell_options,$pre,$step) = explode(',',$cell_options);
				// a few html5 options
				if ((string)$min !== '') $options .= ' min="'.htmlspecialchars($min).'"';
				if ((string)$max !== '') $options .= ' max="'.htmlspecialchars($max).'"';
				//  default step="any" for float, as not setting it limits value to integer as step defaults to 1 in html5!
				if (is_numeric($step) || $type == 'float')
				{
					$options .= ' step="'.(is_numeric($step)?$step:'any').'"';
				}
				if ($cell_options == '' && !$readonly)
				{
					$cell_options = $cell['type'] == 'int' ? 5 : 8;
				}
				// html5 input type=nummeric seems to ignore size, setting a width instead
				$options .= ' style="width: '.(3+abs($cell_options)).'ex"';
				if (($type == 'float' || !is_numeric($pre)) && $value && $pre)
				{
					$value = is_numeric($pre) ? self::number_format($value,$pre,$readonly) : sprintf($pre,$value);
				}
				$cell_options .= ',,'.($cell['type'] == 'int' ? '/^-?[0-9]*$/' : '"/^-?[0-9]*[,.]?[0-9]*$/"').',number';
				// fall-through
			case 'hidden':
			case 'passwd':
			case 'text':		// size: [length][,maxLength[,preg[,html5type]]]
				$cell_opts = $c = self::csv_split($cell_options);	// allows to enclose preg in quote to allow comma
				// fix preg, in case it contains a comma (html5type is only letters and always last option!)
				if (count($cell_opts) > 3 && ($cell_opts2 = explode(',',$cell_options)) && $cell_opts2[2][0] != '"')
				{
					$html5type = array_pop($cell_opts);
					$cell_opts = explode(',',$cell_options,3);
					if (preg_match('/^[a-z]+$/i',$html5type))
					{
						$cell_opts[2] = substr($cell_opts[2],0,-strlen($html5type)-1);
						if ($cell_opts[2][0] == ',') $cell_opts[2] = '';	// happens in link-entry under some condition
						$cell_opts[] = $html5type;
					}
				}
				if ($readonly && (int)$cell_opts[0] >= 0)
				{
					$html .= strlen($value) ? html::bold(html::htmlspecialchars($value)) : '';
				}
				else
				{
					if ($cell_opts[0] < 0) $cell_opts[0] = abs($cell_opts[0]);
					$html .= html::input($form_name,$value,$type == 'passwd' ? 'password' : ($type == 'hidden' ? 'hidden' : $cell_opts[3]),
						$options.html::formatOptions($cell_opts,'SIZE,MAXLENGTH').($cell['needed']?' required="required"':''));

					if (!$readonly)
					{
						self::$request->set_to_process($form_name,$cell['type'],array(
							'maxlength' => $cell_opts[1],
							'needed'    => $cell['needed'],
							'preg'      => $cell_opts[2],
							'min'       => $min,	// int and float only
							'max'       => $max,
						));
					}
				}
				unset($cell_opts);
				break;
			case 'textarea':	// Multiline Text Input, size: [rows][,cols]
				if ($readonly && !$cell_options)
				{
					$html .= '<div>'.nl2br(html::htmlspecialchars($value))."</div>\n";
				}
				else
				{
					// if textarea is readonly, but form_name is already used by an other widget, dont use it
					// browser would only send the content of the readonly (and therefore unchanged) field
					if ($readonly && self::$request->isset_to_process($form_name)) $form_name = '';
					$html .= html::textarea($form_name,$value,
						$options.html::formatOptions($cell_options,'ROWS,COLS').($cell['needed']?' required="required"':''));
				}
				if (!$readonly)
				{
					self::$request->set_to_process($form_name,$cell['type'],array(
						'needed'    => $cell['needed'],
					));
				}
				break;
			case 'htmlarea':	// Multiline formatted Text Input, size: {simple|extended|advanced},height,width,toolbar-expanded,upload-path
				list($mode,$height,$width,$toolbar,$baseref,$convertnl) = explode(',',$cell_options);

				if ($convertnl)
				{
					$value = nl2br(html::htmlspecialchars($value));
				}
				if (!$readonly)
				{
					$mode = $mode ? $mode : 'simple';
					$height = $height ? $height : '400px';
					$width = $width ? $width : '100%';
					$fckoptions = array(
						'toolbar_expanded' => $toolbar,
					);
					// html::fckEditor runs everything through html::purify
					$html .= html::fckEditor($form_name,$value,$mode,$fckoptions,$height,$width,$baseref);

					self::$request->set_to_process($form_name,$cell['type'],array(
						'needed'    => $cell['needed'],
						'mode'      => $mode,	// need mode to not run purify for $mode=='ascii'
					));
				}
				else
				{
					$html .= html::div(html::purify(html::activate_links($value)),'style="overflow: auto; width='. $width. '; height='. $height. '"');
				}
				break;
			case 'checkbox':
				$set_val = 1; $unset_val = 0;
				if (!empty($cell_options))
				{
					list($set_val,$unset_val,$ro_true,$ro_false) = self::csv_split($cell_options);
					if (!$set_val && !$unset_val) $set_val = 1;
					$value = $value == $set_val;
				}
				if (($multiple = substr($cell['name'],-2) == '[]') && !$readonly)
				{
					$readonly = $readonlys[substr($cell['name'],0,-1).$set_val.']'];
				}
				if ($readonly)
				{
					if (count(explode(',',$cell_options)) < 3)
					{
						$ro_true = 'x';
						$ro_false = '';
					}
					if (!$value && $ro_false == 'disable') return '';

					$html .= $value ? html::bold($ro_true) : $ro_false;
				}
				else
				{
					if ($value) $options .= ' checked="checked"';

					if ($multiple)
					{
						// add the set_val to the id to make it unique
						$options = str_replace('id="'.$form_name,'id="'.substr($form_name,0,-2)."[$set_val]",$options);
					}
					$html .= html::input($form_name,$set_val,'checkbox',$options);

					if ($multiple) $form_name = self::form_name($cname,substr($cell['name'],0,-2));

					if (!self::$request->isset_to_process($form_name))
					{
						self::$request->set_to_process($form_name,$cell['type'],array(
							'unset_value' => $unset_val,
							'multiple'    => $multiple,
							'needed'      => $cell['needed'],
						));
					}
					self::$request->set_to_process_attribute($form_name,'values',$set_val,true);
					if (!$multiple) unset($set_val);	// otherwise it will be added to the label
				}
				break;
			case 'radio':		// size: value if checked, readonly set, readonly unset
				list($set_val,$ro_true,$ro_false) = self::csv_split($cell_options);
				$set_val = $this->expand_name($set_val,$show_c,$show_row,$content['.c'],$content['.row'],$content);

				if ($value == $set_val)
				{
					$options .= ' checked="checked"';
				}
				// add the set_val to the id to make it unique
				$options = str_replace('id="'.$form_name,'id="'.$form_name."[$set_val]",$options);

				if ($readonly)
				{
					if (!$ro_true && !$ro_false) $ro_true = 'x';
					$html .= $value == $set_val ? html::bold($ro_true) : $ro_false;
				}
				else
				{
					$html .= html::input($form_name,$set_val,'RADIO',$options);
					self::$request->set_to_process($form_name,$cell['type'],array(
						'needed' => $cell['needed'],
					));
				}
				break;
			case 'button':
			case 'buttononly':
			case 'cancel':	// cancel button
				if ($name == 'cancel' || stripos($name,'[cancel]') !== false) $type = 'cancel';
				list($app) = explode('.',$this->name);
				list($img,$ro_img) = explode(',',$cell_options);
				if ($img[0] != '/' && strpos($img,'/') !== false && count($img_parts = explode('/',$img)) == 2)
				{
					list($app,$img) = $img_parts;	// allow to specify app in image name (eg. img='addressbook/navbar')
				}
				$title = strlen($label) <= 1 || $cell['no_lang'] ? $label : lang($label);
				if ($cell['onclick'] &&
					($onclick = $this->expand_name($cell['onclick'],$show_c,$show_row,$content['.c'],$content['.row'],$content)))
				{
					$onclick = $this->js_pseudo_funcs($onclick,$cname);
				}
				unset($cell['onclick']);	// otherwise the grid will handle it
				if ($this->java_script() && ($cell['onchange'] != '' || $img && !$readonly) && !$cell['needed']) // use a link instead of a button
				{
					$onclick = ($onclick ? preg_replace('/^return(.*);$/','if (\\1) ',$onclick) : '').
						(((string)$cell['onchange'] === '1' || $img) ?
						'return submitit('.self::$name_form.",'".$form_name."');" : $cell['onchange']).'; return false;';

					if (!html::$netscape4 && substr($img,-1) == '%' && is_numeric($percent = substr($img,0,-1)))
					{
						$html .= html::progressbar($percent,$title,'onclick="'.$onclick.'" '.$options);
					}
					else
					{
						$html .= '<a href="" onClick="'.$onclick.'" '.$options.'>' .
							($img ? html::image($app,$img,$title,'border="0"') : $title) . '</a>';
					}
				}
				else
				{
					if (!empty($img))
					{
						$options .= ' title="'.$title.'"';
					}
					if ($cell['onchange'] && $cell['onchange'] != 1)
					{
						$onclick = ($onclick ? preg_replace('/^return(.*);$/','if (\\1) ',$onclick) : '').$cell['onchange'];
					}
					if ($type == 'cancel') $options .= ' novalidate="novalidate"';	// tell html5 form validation NOT to validate
					$html .= !$readonly ? html::submit_button($form_name,$label,$onclick,
						strlen($label) <= 1 || $cell['no_lang'],$options,$img,$app,$type == 'buttononly' ? 'button' : 'submit') :
						html::image($app,$ro_img,'',$options);
				}
				$extra_label = False;
				if (!$readonly && $type != 'buttononly')	// input button, are never submitted back!
				{
					self::$request->set_to_process($form_name,$type);
				}
				break;
			case 'hrule':
				$html .= html::hr($cell_options);
				break;
			case 'grid':
				if ($readonly && !$readonlys['__ALL__'])
				{
					if (!is_array($readonlys)) $readonlys = array();
					$set_readonlys_all = $readonlys['__ALL__'] = True;
				}
				if ($name != '')
				{
					$cname .= $cname == '' ? $name : '['.str_replace('[','][',str_replace(']','',$name)).']';
				}
				$html .= $this->show_grid($cell,$name ? $value : $content,$readonlys,$cname,$show_c,$show_row,$path);
				if ($set_readonlys_all) unset($readonlys['__ALL__']);
				break;
			case 'template':	// size: index in content-array (if not full content is past further on)
				if (is_object($cell['name']))
				{
					$cell['obj'] = &$cell['name'];
					unset($cell['name']);
					$cell['name'] = 'was Object';
					echo "<p>Object in Name in tpl '$this->name': "; _debug_array($grid);
				}
				$obj_read = 'already loaded';
				if (is_array($cell['obj']))
				{
					$obj = new etemplate_old();
					$obj->init($cell['obj']);
					$cell['obj'] =& $obj;
					unset($obj);
				}
				if (!is_object($cell['obj']))
				{
					if ($cell['name'][0] == '@')
					{
						$cell['obj'] = $this->get_array($content,substr($cell['name'],1));
						$obj_read = is_object($cell['obj']) ? 'obj from content' : 'obj read, obj-name from content';
						if (!is_object($cell['obj']))
						{
							$cell['obj'] = new etemplate_old($cell['obj'],$this->as_array());
						}
					}
					else
					{  $obj_read = 'obj read';
						$cell['obj'] = new etemplate_old($name,$this->as_array());
					}
				}
				if (is_int($this->debug) && $this->debug >= 3 || $this->debug == $cell['type'])
				{
					echo "<p>show_cell::template(tpl=$this->name,name=$cell[name]): $obj_read, readonly=$readonly</p>\n";
				}
				if ($this->autorepeat_idx($cell,$show_c,$show_row,$idx,$idx_cname,false,$content) || $cell_options != '')
				{
					if ($span == '' && isset($content[$idx]['span']))
					{	// this allows a colspan in autorepeated cells like the editor
						list($span) = explode(',',$content[$idx]['span']);
						if ($span == 'all')
						{
							$span = 1 + $content['cols'] - $show_c;
						}
					}
					$readonlys = $this->get_array($readonlys,$idx);
					$content = $this->get_array($content,$idx);
					if ($idx_cname != '')
					{
						$cname .= $cname == '' ? $idx_cname : '['.str_replace('[','][',str_replace(']','',$idx_cname)).']';
					}
					//echo "<p>show_cell-autorepeat($name,$show_c,$show_row,cname='$cname',idx='$idx',idx_cname='$idx_cname',span='$span'): content ="; _debug_array($content);
				}
				if ($readonly && !$readonlys['__ALL__'])
				{
					if (!is_array($readonlys)) $readonlys = array();
					$set_readonlys_all = $readonlys['__ALL__'] = True;
				}
				// propagate our onclick handler to embeded templates, if they dont have their own
				if (!isset($cell['obj']->onclick_handler)) $cell['obj']->onclick_handler = $this->onclick_handler;
				if ($cell['obj']->no_onclick)
				{
					$cell['obj']->onclick_proxy = $this->onclick_proxy ? $this->onclick_proxy : $this->name.':'.$this->version.':'.$path;
				}
				// propagate the CSS class to the template
				if ($class)
				{
					$grid_size = array_pad(explode(',',$cell['obj']->size),4,'');
					$grid_size[3] = ($grid_size[3] ? $grid_size[3].' ' : '') . $class;
					$cell['obj']->size = implode(',',$grid_size);
				}
				$html = $cell['obj']->show($content,$this->sel_options,$readonlys,$cname,$show_c,$show_row);

				if ($set_readonlys_all) unset($readonlys['__ALL__']);
				break;
			case 'select':	// size:[linesOnMultiselect|emptyLabel,extraStyleMulitselect]
				$sels = array();
				list($multiple,$extraStyleMultiselect) = explode(',',$cell_options,2);
				if (!empty($multiple) && 0+$multiple <= 0)
				{
					$sels[''] = $multiple < 0 ? 'all' : $multiple;
					// extra-option: no_lang=0 gets translated later and no_lang=1 gets translated too (now), only no_lang>1 gets not translated
					if ((int)$cell['no_lang'] == 1)
					{
						$sels[''] = substr($sels[''],-3) == '...' ? lang(substr($sels[''],0,-3)).'...' : lang($sels['']);
					}
					$multiple = 0;
				}
				$sels += $this->_sel_options($cell,$name,$content);
				if ($multiple && !is_array($value)) $value = explode(',',$value);
				if ($readonly || $cell['noprint'])
				{
					foreach($multiple || is_array($value) ? $value : array($value) as $val)
					{
						if (is_array($sels[$val]))
						{
							$option_label = $sels[$val]['label'];
							$option_title = $sels[$val]['title'];
						}
						else
						{
							$option_label = ($sels[$val]?$sels[$val]:$val);
							$option_title = '';
						}
						if (!$cell['no_lang']) $option_label = lang($option_label);

						if ($html) $html .= "<br>\n";

						if ($option_title)
						{
							$html .= '<span title="'.html::htmlspecialchars($option_title).'">'.html::htmlspecialchars($option_label).'</span>';
						}
						else
						{
							$html .= html::htmlspecialchars($option_label);
						}
					}
				}
				if (!$readonly)
				{
					if ($cell['noprint'])
					{
						$html = '<span class="onlyPrint">'.$html.'</span>';
						$options .= ' class="noPrint"';
					}
					if ($multiple && is_numeric($multiple))	// eg. "3+" would give a regular multiselectbox
					{
						$html .= html::checkbox_multiselect($form_name.($multiple > 1 ? '[]' : ''),$value,$sels,
							$cell['no_lang'],$options,$multiple,$multiple[0]!=='0',$extraStyleMultiselect);
					}
					else
					{
						$html .= html::select($form_name.($multiple > 1 ? '[]' : ''),$value,$sels,
							$cell['no_lang'],$options,$multiple);
					}
					if (!self::$request->isset_to_process($form_name))
					{
						// fix for optgroup's
						$options=array();
						foreach($sels as $key => $val)
						{
							# we want the key anyway, even if this allowes more values than wanted (the name/key of the optgroup if there is one,
							# the keys of the arrays in case you have key/value pair(s) as value for the value of your option ).
							$options[$key]=$key;
							if (is_array($val))
							{
								foreach(array_keys($val) as $key2)
								{
									$options[$key2]=$key2;
								}
							}
						}
						self::$request->set_to_process($form_name,$cell['type'],array(
							'needed'  => $cell['needed'],
							'allowed' => array_keys($options),
							'multiple'=> $multiple,
						));
					}
				}
				break;
			case 'image':	// size: [link],[link_target],[imagemap],[link_popup],[id]
			case 'progress':
				if (is_string($value) && $value !== '' &&
					($is_progress = substr($value,-1) == '%' && is_numeric(substr($value,0,-1))) !== ($type == 'progress'))
				{
					error_log("Please use correct widget-type '".($is_progress?'progress':'image')."' in eTemplate '$this->name'!");
				}
				$image = $value != '' ? $value : $name;
				if (is_string($image)) list($app,$img) = explode('/',$image,2);
				if (!$app || !$img || !is_dir(EGW_SERVER_ROOT.'/'.$app) || strpos($img,'/')!==false)
				{
					$img = $image;
					list($app) = explode('.',$this->name);
				}
				if (!$readonly)
				{
					list($extra_link,$extra_link_target,$imagemap,$extra_link_popup,$id) = self::csv_split($cell['size']);
				}
				$html .= html::image($app,$img,strlen($label) > 1 && !$cell['no_lang'] ? lang($label) : $label,
					'border="0"'.($imagemap?' usemap="#'.html::htmlspecialchars($imagemap).'"':'').
					($id || $value ? self::get_id($name,$cell['name'],$id) : ''));
				$extra_label = False;
				break;
			case 'file':	// size: size of the filename field
				if (!$readonly)
				{
					if ((int) $cell_options) $options .= ' size="'.(int)$cell_options.'"';
					if (substr($name,-2) == '[]')
					{
						self::$form_options .= ' enctype="multipart/form-data"';
						if (strpos($options,'onChange="') !== false)
						{
							$options = preg_replace('/onChange="([^"]+)"/i','onChange="\\1; if (!this.multiple) add_upload(this);"',$options);
						}
						else
						{
							$options .= ' onChange="if (!this.multiple) add_upload(this);"';
						}
						$options .= ' multiple="multiple"';	// allow html5 browsers to select more then one file
					}
					else
					{
						$html .= html::input_hidden($path_name = str_replace($name,$name.'_path',$form_name),'.');
						self::$form_options = " enctype=\"multipart/form-data\" onsubmit=\"set_element2(this,'$path_name','$form_name')\"";
					}
					$html .= html::input($form_name,'','file',$options);
					self::$request->set_to_process($form_name,$cell['type'],array(
						'needed' => $cell['needed'],
					));
				}
				break;
			case 'vbox':
			case 'hbox':
			case 'groupbox':
			case 'box':	// size: num,orient,cellpadding,cellspacing,keep
				$rows = array();
				$box_row = 1;
				$box_col = 'A';
				$box_anz = 0;
				list($num,$orient,,,$keep_empty) = explode(',',$cell_options);
				if (!$orient) $orient = $type == 'hbox' ? 'horizontal' : ($type == 'box' ? false : 'vertical');
				for ($n = 1; $n <= (int) $num; ++$n)
				{
					$child = $cell[$n];	// first param is a var_param now!
					$h = $this->show_cell($child,$content,$readonlys,$cname,$show_c,$show_row,$nul,$cl,$path.'/'.$n);
					if ($h != '' && $h != '&nbsp;' || $keep_empty)
					{
						if ($orient != 'horizontal')
						{
							$box_row = $n;
						}
						else
						{
							$box_col = $this->num2chrs($n);
						}
						if (!$orient)
						{
							$html .= $cl ? html::div($h," class=\"$cl\"") : $h;
						}
						else
						{
							$rows[$box_row][$box_col] = $html = $h;
						}
						$box_anz++;
						if ($cell[$n]['align'])
						{
							$rows[$box_row]['.'.$box_col] = html::formatOptions($child['align'],'align');
							$sub_cell_has_align = true;
						}
						if (strlen($child['onclick']) > 1)
						{
							$rows[$box_row]['.'.$box_col] .= ' onclick="'.$this->js_pseudo_funcs($child['onclick'],$cname).'"'.
								self::get_id('',$child['name'],$child['id']);
						}
						// allow to set further attributes in the tablecell, beside the class
						if (is_array($cl))
						{
							foreach($cl as $attr => $val)
							{
								if ($attr != 'class' && $val)
								{
									$rows[$box_row]['.'.$box_col] .= ' '.$attr.'="'.$val.'"';
								}
							}
							$cl = $cl['class'];
						}
						$box_item_class = $this->expand_name(isset(self::$class_conf[$cl]) ? self::$class_conf[$cl] : $cl,
							$show_c,$show_row,$content['.c'],$content['.row'],$content);
						$rows[$box_row]['.'.$box_col] .= html::formatOptions($box_item_class,'class');
					}
				}
				if ($box_anz > 1 && $orient)	// a single cell is NOT placed into a table
				{
					$html = html::table($rows,html::formatOptions($cell_options,',,cellpadding,cellspacing').
						($type != 'groupbox' ? html::formatOptions($class,'class').
							 ($cell['name'] ? self::get_id($form_name,$cell['name'],$cell['id']) : '') : '').
						($cell['align'] && $orient != 'horizontal' || $sub_cell_has_align ? ' width="100%"' : ''));	// alignment only works if table has full width
					if ($type != 'groupbox') $class = '';	// otherwise we create an extra div
				}
				// put the class of the box-cell, into the the class of this cell
				elseif ($box_item_class && $box_anz == 1)
				{
					$class = ($class ? $class . ' ' : '') . $box_item_class;
				}
				if ($type == 'groupbox')
				{
					if (strlen($label) > 1 && $cell['label'] == $label)
					{
						$label = lang($label);
					}
					$html = html::fieldset($html,$label,self::get_id($form_name,$cell['name'],$cell['id']).
						($class ? ' class="'.$class.'"' : ''));
					$class = '';	// otherwise we create an extra div
				}
				elseif (!$orient)
				{
					if (strpos($html,'class="'.$class)) $class = '';	// dont add class a 2. time
					$html = html::div($html,html::formatOptions(array(
							$cell['height'],
							$cell['width'],
							$class,
						),'height,width,class').self::get_id($form_name,$cell['name'],$cell['id'])). ($html ? '' : '</div>');
					$class = '';	// otherwise we create an extra div
				}
				if ($box_anz > 1)	// small docu in the html-source
				{
					$html = "\n\n<!-- BEGIN $cell[type] -->\n\n".$html."\n\n<!-- END $cell[type] -->\n\n";
				}
				$extra_label = False;
				break;
			case 'deck':
				for ($n = 1; $n <= $cell_options && (empty($value) || $value != $cell[$n]['name']); ++$n) ;
				if ($n > $cell_options)
				{
					$value = $cell[1]['name'];
				}
				if ($s_width = $cell['width'])
				{
					$s_width = "width: $s_width".(substr($s_width,-1) != '%' ? 'px' : '').';';
				}
				if ($s_height = $cell['height'])
				{
					$s_height = "height: $s_height".(substr($s_height,-1) != '%' ? 'px' : '').';';
				}
				$html = html::input_hidden($form_name,$value);
				self::$request->set_to_process($form_name,$cell['type']);

				for ($n = 1; $n <= $cell_options; ++$n)
				{
					$child = $cell[$n];	// first param is a var_param now!
					$html .= html::div($this->show_cell($child,$content,$readonlys,$cname,$show_c,
						$show_row,$nul,$cl,$path.'/'.$n),html::formatOptions(array(
						'display: '.($value == $child['name'] ? 'inline' : 'none').';',
						$child['name']
					),'style,id'));
				}
				break;
			case 'colorpicker':
				if ($readonly)
				{
					$html = $value;
				}
				else
				{
					$html = html::inputColor($form_name,$value,$cell['help']);

					self::$request->set_to_process($form_name,$cell['type'],array(
							'maxlength' => 7,
							'needed'    => $cell['needed'],
							'preg'      => '/^(#[0-9a-f]{6}|)$/i',
						));
				}
				break;
			default:
				if ($ext_type && $this->haveExtension($ext_type,'render'))
				{
					$html .= $this->extensionRender($ext_type,$form_name,$value,$cell,$readonly);
				}
				else
				{
					$html .= "<i>unknown type '$cell[type]'</i>";
				}
				break;
		}
		// extension-processing need to be after all other and only with diff. name
		if ($ext_type && !$readonly && $this->haveExtension($ext_type,'post_process'))
		{	// unset it first, if it is already set, to be after the other widgets of the ext.
			$to_process = self::$request->get_to_process($form_name);
			self::$request->unset_to_process($form_name);
			self::$request->set_to_process($form_name,'ext-'.$ext_type,$to_process);
		}
		// save blur-value to strip it in process_exec
		if (!empty($blur) && self::$request->isset_to_process($form_name))
		{
			self::$request->set_to_process_attribute($form_name,'blur',$blur);
		}
		if ($extra_label && ($label != '' || $html == ''))
		{
			if (strlen($label) > 1 && !($cell['no_lang'] && $cell['label'] != $label || (int)$cell['no_lang'] == 2))
			{
				$label = lang($label);
			}
			$accesskey = false;
			if (($accesskey = $label && strpos($label,'&')!==false) && $accesskey[1] != ' ' && $form_name != '' &&
					(($pos = strpos($accesskey,';')) === false || $pos > 5))
			{
				$label = str_replace('&'.$accesskey[1],'<u>'.$accesskey[1].'</u>',$label);
				$accesskey = $accesskey[1];
			}
			if ($label && !$readonly && ($accesskey || $label_for || $type != 'label' && $cell['name']))
			{
				if ($label_for)		// if label_for starts with a '#', it is already an id - no need to create default id from it
				{
					$label_for = $label_for[0] == '#' ? substr($label_for,1) : self::form_name($cname,$label_for);
				}
				else
				{
					$label_for = $form_name.($set_val?"[$set_val]":'');
				}
				$label = html::label($label,$label_for,$accesskey);
			}
			if ($type == 'radio' || $type == 'checkbox' || $label && strpos($label,'%s')!==false)	// default for radio is label after the button
			{
				$html = strpos($label,'%s')!==false ? str_replace('%s',$html,$label) : $html.' '.$label;
			}
			elseif (($html = $label . ' ' . $html) == ' ')
			{
				$html = '&nbsp;';
			}
		}
		if ($extra_link && (($extra_link = $this->expand_name($extra_link,$show_c,$show_row,$content['.c'],$content['.row'],$content))))
		{
			$options = $help ? ' onmouseover="self.status=\''.addslashes(html::htmlspecialchars($help)).'\'; return true;"' .
				' onmouseout="self.status=\'\'; return true;"' : '';

			if ($extra_link_target && (($extra_link_target = $this->expand_name($extra_link_target,$show_c,$show_row,$content['.c'],$content['.row'],$content))))
			{
				$options .= ' target="'.addslashes($extra_link_target).'"';
			}
			if ($extra_link_popup && (($extra_link_popup = $this->expand_name($extra_link_popup,$show_c,$show_row,$content['.c'],$content['.row'],$content))))
			{
				list($w,$h) = explode('x',$extra_link_popup);
				$options .= ' onclick="window.open(this,this.target,\'width='.(int)$w.',height='.(int)$h.',location=no,menubar=no,toolbar=no,scrollbars=yes,status=yes\'); return false;"';
			}
			if ($extra_link_title)
			{
				$options .= ' title="'.addslashes($extra_link_title).'"';
			}
			return html::a_href($html,$extra_link,'',$options);
		}
		// if necessary show validation-error behind field
		if (isset(self::$validation_errors[$form_name]))
		{
			$html .= ' <span style="color: red; white-space: nowrap;">'.self::$validation_errors[$form_name].'</span>';
		}
		// generate an extra div, if we have an onclick handler and NO children or it's an extension
		//echo "<p>$this->name($this->onclick_handler:$this->no_onclick:$this->onclick_proxy): $cell[type]/$cell[name]</p>\n";
		if ($this->onclick_handler && !isset(self::$widgets_with_children[$cell['type']]))
		{
			$handler = str_replace('%p',$this->no_onclick ? $this->onclick_proxy : $this->name.':'.$this->version.':'.$path,
				$this->onclick_handler);
			if ($type == 'button' || $type == 'buttononly' || !$label)	// add something to click on
			{
				$html = (substr($html,-1) == "\n" ? substr($html,0,-1) : $html).'&nbsp;';
			}
			return html::div($html,' ondblclick="'.$handler.'"','clickWidgetToEdit');
		}
		return $html;
	}

	/**
	 * Return id="..." attribute, using the following order to determine the id:
	 *	- $id if not empty
	 *  - $name if starting with a hash (#), without the hash of cause
	 *	- $form_name otherwise
	 *
	 * This is necessary to not break backward compatibility: if you want to specify
	 * a certain id, you can use now "#something" as name to get id="something",
	 * otherwise the $form_name "exec[something]" is used.
	 * (If no id is directly supplied internally.)
	 *
	 * @param string $form_name
	 * @param string $name=null
	 * @param string $id=null
	 * @return string ' id="..."' or '' if no id found
	 */
	static public function get_id($form_name,$name=null,$id=null)
	{
		if (empty($id))
		{
			if ($name[0] == '#')
			{
				$id = substr($name,1);
			}
			else
			{
				$id = $form_name;
			}
		}
		return !empty($id) ? ' id="'.str_replace('"','&quot;',$id).'"' : '';
	}

	/**
	 * Format a number according to user prefs with decimal and thousands separator (later only for readonly)
	 *
	 * @param int|float|string $number
	 * @param int $num_decimal_places=2
	 * @param boolean $readonly=true
	 * @return string
	 */
	static public function number_format($number,$num_decimal_places=2,$readonly=true)
	{
		static $dec_separator,$thousands_separator;
		if (is_null($dec_separator))
		{
			$dec_separator = $GLOBALS['egw_info']['user']['preferences']['common']['number_format'][0];
			if (empty($dec_separator)) $dec_separator = '.';
			$thousands_separator = $GLOBALS['egw_info']['user']['preferences']['common']['number_format'][1];
		}
		if ((string)$number === '') return '';

		return number_format(str_replace(' ','',$number),$num_decimal_places,$dec_separator,$readonly ? $thousands_separator : '');
	}

	/**
	* Retrive options for selectboxes and similar widgets (eg. the tree)
	*
	* @param array $cell
	* @param string $name
	* @param array $content=array();
	* @return array
	*/
	function _sel_options($cell,$name,$content=array())
	{
		$sels = array();

		if (!empty($cell['sel_options']))
		{
			if (!is_array($cell['sel_options']))
			{
				$opts = explode(',',$cell['sel_options']);
				while (list(,$opt) = each($opts))
				{
					list($k,$v) = explode('=',$opt);
					$sels[$k] = $v;
				}
			}
			else
			{
				$sels += $cell['sel_options'];
			}
		}
		if (isset($this->sel_options[$name]) && is_array($this->sel_options[$name]))
		{
			$sels += $this->sel_options[$name];
		}
		else
		{
			$name_parts = explode('[',str_replace(']','',$name));
			if (count($name_parts))
			{
				$org_name = $name_parts[count($name_parts)-1];
				if (isset($this->sel_options[$org_name]) && is_array($this->sel_options[$org_name]))
				{
					$sels += $this->sel_options[$org_name];
				}
				elseif (isset($this->sel_options[$name_parts[0]]) && is_array($this->sel_options[$name_parts[0]]))
				{
					$sels += $this->sel_options[$name_parts[0]];
				}
			}
		}
		if (isset($content["options-$name"]))
		{
			$sels += $content["options-$name"];
		}
		return $sels;
	}

	/**
	* Resolve javascript pseudo functions in onclick or onchange:
	* - egw::link('$l','$p') calls $egw->link($l,$p)
	* - form::name('name') returns expanded name/id taking into account the name at that point of the template hierarchy
	* - egw::lang('Message ...') translate the message
	* - confirm('message') translates 'message' and adds a '?' if not present
	* - window.open() replaces it with egw_openWindowCentered2()
	* - xajax_doXMLHTTP('etemplate. replace ajax calls in widgets with special handler not requiring etemplate run rights
	*
	* @param string $on onclick, onchange, ... action
	* @param string $cname name-prefix / name-space
	* @return string
	*/
	function js_pseudo_funcs($on,$cname)
	{
		if (strpos($on,'::') !== false)	// avoid the expensive regular expresions, for performance reasons
		{
			if (preg_match_all("/egw::link\\('([^']+)','(.+?)'\\)/",$on,$matches))	// the ? alters the expression to shortest match
			{
				foreach(array_keys($matches[1]) as $n)                         	// this way we can correctly parse ' in the 2. argument
				{
					$url = $GLOBALS['egw']->link($matches[1][$n],$matches[2][$n]);
					$on = str_replace($matches[0][$n],'\''.$url.'\'',$on);
				}
			}

			if (preg_match_all("/form::name\\('([^']+)'\\)/",$on,$matches))
			{
				foreach($matches[1] as $n => $matche_name)
				{
					$matches[1][$n] = '\''.self::form_name($cname,$matche_name).'\'';
				}
				$on = str_replace($matches[0],$matches[1],$on);
			}
			// we need to search ungready (shortest possible match), to avoid catching to much
			if (preg_match_all('/egw::lang\(["\']{1}(.*)["\']{1}\)/U',$on,$matches)) {
				foreach($matches[1] as $n => $string) {
					$str = lang($string);
					$on = str_replace($matches[0][$n],'\''.addslashes($str).'\'',$on);
				}
			}

			// inserts the styles of a named template
			if (preg_match('/template::styles\(["\']{1}(.*)["\']{1}\)/U',$on,$matches))
			{
				$tpl = $matches[1] == $this->name ? $this : new etemplate_old($matches[1]);
				$on = str_replace($matches[0],"'<style>".str_replace(array("\n","\r"),'',$tpl->style)."</style>'",$on);
			}
		}

		// translate messages in confirm()
		if (strpos($on,'confirm(') !== false && preg_match('/confirm\(["\']{1}(.*)["\']{1}\)/U',$on,$matches))
		{
			$question = lang($matches[1]).(substr($matches[1],-1) != '?' ? '?' : '');	// add ? if not there, saves extra phrase
			$on = str_replace($matches[0],'confirm(\''.str_replace("'","\\'",$question).'\')',$on);
		}

		// replace window.open() with EGw's egw_openWindowCentered2()
		if (strpos($on,'window.open(') !== false && preg_match("/window.open\('(.*)','(.*)','dependent=yes,width=([^,]*),height=([^,]*),scrollbars=yes,status=(.*)'\)/",$on,$matches))
		{
			$on = str_replace($matches[0], "egw_openWindowCentered2('$matches[1]', '$matches[2]', $matches[3], $matches[4], '$matches[5]')", $on);
		}

		// replace xajax calls to code in widgets, with the "etemplate" handler,
		// this allows to call widgets with the current app, otherwise everyone would need etemplate run rights
		if (strpos($on,"xajax_doXMLHTTP('etemplate.") !== false)
		{
			$on = preg_replace("/^xajax_doXMLHTTP\('etemplate\.([a-z]+_widget\.[a-zA-Z0-9_]+)\'/",'xajax_doXMLHTTP(\''.$GLOBALS['egw_info']['flags']['currentapp'].'.\\1.etemplate\'',$on);
		}

		return $on;
	}

	/**
	* applies stripslashes recursivly on each element of an array
	*
	* @param array &$var
	* @return array
	*/
	static function array_stripslashes($var)
	{
		if (!is_array($var))
		{
			return stripslashes($var);
		}
		foreach($var as $key => $val)
		{
			$var[$key] = is_array($val) ? self::array_stripslashes($val) : stripslashes($val);
		}
		return $var;
	}

	/**
	* makes necessary adjustments on $_POST after a eTemplate / form gots submitted
	*
	* This is only an internal function, dont call it direct use only exec
	* Process_show uses a list of input-fields/widgets generated by show.
	*
	* @internal
	* @param array $content $_POST[$cname], on return the adjusted content
	* @param array $to_process list of widgets/form-fields to process
	* @param string $cname='' basename of our returnt content (same as in call to show)
	* @param string $_type='regular' type of request
	* @return int number of validation errors (the adjusted content is returned by the var-param &$content !)
	*/
	function process_show(&$content,$to_process,$cname='',$_type='regular')
	{
		if (!isset($content) || !is_array($content) || !is_array($to_process))
		{
			return;
		}
		if (is_int($this->debug) && $this->debug >= 1 || $this->debug == $this->name && $this->name)
		{
			echo "<p>process_show($this->name) cname='$cname' start: content ="; _debug_array($content);
		}
		$content_in = $cname ? array($cname => $content) : $content;
		$content = array();
		if (get_magic_quotes_gpc())
		{
			$content_in = self::array_stripslashes($content_in);
		}
		self::$validation_errors = array();
		$this->canceled = $this->button_pressed = False;

		foreach($to_process as $form_name => $type)
		{
			if (is_array($type))
			{
				$attr = $type;
				$type = $attr['type'];
			}
			else
			{
				$attr = array();
			}
			$form_name = str_replace(array('&#x5B;','&#x5D;'), array('[',']'), $form_name);
			$value = self::get_array($content_in,$form_name,True,$GLOBALS['egw_info']['flags']['currentapp'] == 'etemplate' ? false : true );
			// The comment below does only aplay to normal posts, not for xajax. Files are not supported anyway by xajax atm.
			// not checked checboxes are not returned in HTML and file is in $_FILES and not in $content_in
			if($value === false && $_type == 'xajaxResponse' /*!in_array($type,array('checkbox','file'))*/) continue;

			if (isset($attr['blur']) && $attr['blur'] == $value)
			{
				$value = '';	// blur-values is equal to emtpy
			}
			//echo "<p>process_show($this->name) loop was ".self::$loop.", $type: $form_name = ".array2string($value)."</p>\n";
			if (is_string($type)) list($type,$sub) = explode('-',$type);
			switch ($type)
			{
				case 'ext':
					$_cont = &self::get_array($content,$form_name,True);
					if (!$this->extensionPostProcess($sub,$form_name,$_cont,$value))
					{
						//echo "\n<p><b>unsetting content[$form_name] !!!</b></p>\n";
						$this->unset_array($content,$form_name);
					}
					// this else should NOT be unnecessary as $_cont is a reference to the index
					// $form_name of $content, but under some circumstances a set/changed $_cont
					// does not result in a change in $content -- RalfBecker 2004/09/18
					// seems to depend on the number of (not existing) dimensions of the array -- -- RalfBecker 2005/04/06
					elseif (!self::isset_array($content,$form_name))
					{
						//echo "<p>setting content[$form_name]='$_cont' because is was unset !!!</p>\n";
						self::set_array($content,$form_name,$_cont);
					}
					if ($_cont === '' && $attr['needed'] && !$attr['blur'])
					{
						self::set_validation_error($form_name,lang('Field must not be empty !!!'),'');
					}
					break;
				case 'htmlarea':
					if ($attr['mode'] !== 'ascii')
					{
						self::set_array($content,$form_name,html::purify($value));
						break;
					}
					// fall-throught for mode 'ascii', which is identical to textarea
				case 'int':
				case 'float':
				case 'passwd':
				case 'text':
				case 'hidden':
				case 'textarea':
				case 'colorpicker':
					if ((string)$value === '' && $attr['needed'] && !$attr['blur'])
					{
						self::set_validation_error($form_name,lang('Field must not be empty !!!'),'');
					}
					if ((int) $attr['maxlength'] > 0 && strlen($value) > (int) $attr['maxlength'])
					{
						$value = substr($value,0,(int) $attr['maxlength']);
					}
					if ($attr['preg'] && !preg_match($attr['preg'],$value))
					{
						switch($type)
						{
							case 'int':
								self::set_validation_error($form_name,lang("'%1' is not a valid integer !!!",$value),'');
								break;
							case 'float':
								self::set_validation_error($form_name,lang("'%1' is not a valid floatingpoint number !!!",$value),'');
								break;
							default:
								self::set_validation_error($form_name,lang("'%1' has an invalid format !!!",$value)/*." !preg_match('$attr[preg]', '$value')"*/,'');
								break;
						}
					}
					elseif ($type == 'int' || $type == 'float')	// cast int and float and check range
					{
						if ((string)$value !== '' || $attr['needed'])	// empty values are Ok if needed is not set
						{
							$value = $type == 'int' ? (int) $value : (float) str_replace(',','.',$value);	// allow for german (and maybe other) format

							if (!empty($attr['min']) && $value < $attr['min'])
							{
								self::set_validation_error($form_name,lang("Value has to be at least '%1' !!!",$attr['min']),'');
								$value = $type == 'int' ? (int) $attr['min'] : (float) $attr['min'];
							}
							if (!empty($attr['max']) && $value > $attr['max'])
							{
								self::set_validation_error($form_name,lang("Value has to be at maximum '%1' !!!",$attr['max']),'');
								$value = $type == 'int' ? (int) $attr['max'] : (float) $attr['max'];
							}
						}
					}
					self::set_array($content,$form_name,$value);
					break;
				case 'cancel':	// cancel button ==> dont care for validation errors
					if ($value)
					{
						$this->canceled = True;
						self::set_array($content,$form_name,$value);
					}
					break;
				case 'button':
					if ($value)
					{
						$this->button_pressed = True;
						self::set_array($content,$form_name,$value);
					}
					break;
				case 'select':
					if ($attr['allowed'])	// only check for $value is allowed, if allowed values are set
					{
						foreach(is_array($value) ? $value : array($value) as $val)
						{
							if (!($attr['multiple'] && !$val) && !in_array($val,$attr['allowed']))
							{
								self::set_validation_error($form_name,lang("'%1' is NOT allowed ('%2')!",$val,implode("','",$attr['allowed'])),'');
								$value = '';
								break;
							}
						}
					}
					if (is_array($value)) $value = implode(',',$value);
					if ($value === '' && $attr['needed'])
					{
						self::set_validation_error($form_name,lang('Field must not be empty !!!',$value),'');
					}
					self::set_array($content,$form_name,$value);
					break;
				case 'checkbox':
					if (!$value && $attr['needed'])
					{
						self::set_validation_error($form_name,lang('Field must not be empty !!!',$value),'');
					}
					if ($value === false)
					{
						self::set_array($content,$form_name,$attr['multiple'] ? array() : $attr['unset_value']);	// need to be reported too
					}
					else
					{
						$value = array_intersect(is_array($value) ? $value : array($value),$attr['values']); // return only allowed values
						self::set_array($content,$form_name,$attr['multiple'] ? $value : $value[0]);
					}
					break;
				case 'file':
					if (($multiple = substr($form_name,-2) == '[]'))
					{
						$form_name = substr($form_name,0,-2);
					}
					$parts = explode('[',str_replace(']','',$form_name));
					$name = array_shift($parts);
					$index  = count($parts) ? '['.implode('][',$parts).']' : '';
					$value = array();
					for($i=0; $i < 100; ++$i)
					{
						$file = array();
						foreach(array('tmp_name','type','size','name','error') as $part)
						{
							if (!is_array($_FILES[$name])) break 2;	// happens eg. in forms set via xajax, which do not upload files
							$file[$part] = $this->get_array($_FILES[$name],$part.$index.($multiple ? "[$i]" : ''));
						}
						if (!$multiple) $file['path'] = $this->get_array($content_in,substr($form_name,0,-1).'_path]');
						$file['ip'] = $_SERVER['REMOTE_ADDR'];
						// check if we have an upload error
						if ($file['error'] && $file['name'] !== '' && !$file['size'])	// ignore empty upload boxes
						{
							self::set_validation_error($form_name.($multiple?'[]':''),
								lang('Error uploading file!')."\n".self::max_upload_size_message(),'');
						}
						if ((string)$file['name'] === '' || $file['tmp_name'] && function_exists('is_uploaded_file') && !is_uploaded_file($file['tmp_name']))
						{
							if ($multiple && ($file['name'] === '' || $file['error']))
							{
								continue;	// ignore empty upload box
							}
							break;
						}
						if (!$multiple)
						{
							$value = $file;
							break;
						}
						$value[] = $file;
					}
					//echo $form_name; _debug_array($value);
					// fall-throught
				default:
					if ($attr['needed'] && !$value)
					{
						self::set_validation_error($form_name,lang('Field must not be empty !!!',$value),'');
					}
					self::set_array($content,$form_name,$value);
					break;
			}
		}
		if ($cname)
		{
			$content = $content[$cname];
		}
		if (is_int($this->debug) && $this->debug >= 2 || $this->debug == $this->name && $this->name)
		{
			echo "<p>process_show($this->name) end: content ="; _debug_array($content);
			if (count(self::$validation_errors))
			{
				echo "<p>validation_errors = "; _debug_array(self::$validation_errors);
			}
		}
		return count(self::$validation_errors);
	}

	/**
	* Sets a validation error, to be displayed in the next exec
	*
	* @param string $name (complete) name of the widget causing the error
	* @param string|boolean $error error-message already translated or false to reset all existing error for given name
	* @param string $cname=null set it to '', if the name is already a form-name, defaults to self::$name_vars
	*/
	static function set_validation_error($name,$error,$cname=null)
	{
		if (is_null($cname)) $cname = self::$name_vars;
		//echo "<p>self::set_validation_error('$name','$error','$cname');</p>\n";
		if ($cname) $name = self::form_name($cname,$name);

		if ($error === false)
		{
			unset(self::$validation_errors[$name]);
		}
		else
		{
			if (self::$validation_errors[$name])
			{
				self::$validation_errors[$name] .= ', ';
			}
			self::$validation_errors[$name] .= $error;
		}
	}

	/**
	* is javascript enabled?
	*
	* this should be tested by the api at login
	*
	* @return boolean true if javascript is enabled or not yet tested and $consider_not_tested_as_enabled
	*/
	function java_script($consider_not_tested_as_enabled = True)
	{
		$ret = !!self::$java_script ||
			$consider_not_tested_as_enabled && !isset(self::$java_script);
		//echo "<p>java_script($consider_not_tested_as_enabled)='$ret', java_script='".self::$java_script."', isset(java_script)=".isset(self::$java_script)."</p>\n";

		return $ret;
	}

	/**
	* returns the javascript to be included by exec
	*
	* @param int $what &1 = returns the test, note: has to be included in the body, not the header,
	*		&2 = returns the common functions, best to be included in the header
	* @return string javascript
	*/
	private function include_java_script($what = 3)
	{
		// this is to test if javascript is enabled
		if ($what & 1 && !isset(self::$java_script))
		{
			$js = '<script language="javascript">
document.write(\''.str_replace("\n",'',html::input_hidden('java_script','1')).'\');
</script>
';
		}
		// here are going all the necesarry functions if javascript is enabled
		if ($what & 2 && $this->java_script(True))
		{
			$lastmod = filectime(EGW_INCLUDE_ROOT. '/etemplate/js/etemplate.js');
			$js .= '<script type="text/javascript" src="'.
				$GLOBALS['egw_info']['server']['webserver_url'].'/etemplate/js/etemplate.js?'. $lastmod.'"></script>'."\n";
		}
		return $js;
	}
}