diff --git a/phpgwapi/inc/common_functions.inc.php b/phpgwapi/inc/common_functions.inc.php
index e6f36010ad..a1495d82af 100755
--- a/phpgwapi/inc/common_functions.inc.php
+++ b/phpgwapi/inc/common_functions.inc.php
@@ -1241,7 +1241,7 @@ foreach(array('_GET','_POST','_REQUEST','HTTP_GET_VARS','HTTP_POST_VARS') as $n
 	}
 	// do the check for script-tags only for _GET and _POST or if we found something in _GET and _POST
 	// speeds up the execusion a bit
-	if (is_array($GLOBALS[$where]) && ($n < 2 || is_array($GLOBALS['egw_unset_vars'])))
+	if (isset($GLOBALS[$where]) && is_array($GLOBALS[$where]) && ($n < 2 || is_array($GLOBALS['egw_unset_vars'])))
 	{
 		_check_script_tag($GLOBALS[$where],$where);
 	}
@@ -1274,19 +1274,6 @@ if (ini_get('register_globals'))
 	unregister_globals();
 }
 
-if(floor(phpversion()) <= 4)
-{
-	/**
-	 * clone function for php4, use as $new_obj = clone($old_obj);
-	 */
-	eval('
-	function clone($obj)
-	{
-		return $obj;
-	}
-	');
-}
-
 if (!function_exists('lang'))	// setup declares an own version
 {
 	/**