diff --git a/calendar/inc/class.calendar_uiforms.inc.php b/calendar/inc/class.calendar_uiforms.inc.php
index cfdb3926b2..1a64b39bbe 100644
--- a/calendar/inc/class.calendar_uiforms.inc.php
+++ b/calendar/inc/class.calendar_uiforms.inc.php
@@ -1472,10 +1472,6 @@ class calendar_uiforms extends calendar_ui
 			{
 				// fix real app string
 				$content['participants']['resource']['app'] = 'resources';
-				// this will be used to get reservation information on the resource select list
-				$content['participants']['resource']['extra'] = "values2url(this.form,'start,end,duration,participants,recur_type,whole_day')".
-					"+'&exec[event_id]=".$content['id']."'"."+'&exec[show_conflict]=".
-					(($this->cal_prefs['defaultresource_sel'] == 'resources_without_conflict')? '0':'1')."'";
 			}
 			// check if current pref. is an allowed application for the user
 			if (!isset($GLOBALS['egw_info']['user']['apps'][$content['participants']['resource']['app']]))
diff --git a/calendar/js/app.js b/calendar/js/app.js
index 47272a6235..8e5d105011 100644
--- a/calendar/js/app.js
+++ b/calendar/js/app.js
@@ -939,6 +939,40 @@ app.classes.calendar = AppJS.extend(
 		}
 	},
 
+	/**
+	 * In edit popup, search for calendar participants.
+	 * Resources need to have the start & duration (etc.)
+	 * passed along in the query.
+	 *
+	 * @param {Object} request
+	 * @param {et2_link_entry} widget
+	 *
+	 * @returns {boolean} True to continue with the search
+	 */
+	edit_participant_search: function(request, widget)
+	{
+		if(widget.app_select.val() == 'resources')
+		{
+			// Resources search is expecting exec
+			var values = widget.getInstanceManager().getValues(widget.getRoot());
+			if(typeof request.options != 'object' || request.options == null)
+			{
+				request.options = {};
+			}
+			request.options.exec = {
+				start: values.start,
+				end: values.end,
+				duration: values.duration,
+				participants: values.participants,
+				recur_type: values.recur_type,
+				whole_day: values.whole_day,
+				event_id: values.link_to.to_id, // cal_id, if available
+				show_conflict: (egw.preference('defaultresource_sel','calendar') == 'resources_without_conflict') ? '0' : '1'
+			}
+		}
+		return true;
+	},
+	
 	/**
 	 * Handles to select freetime, and replace the selected one on Start,
 	 * and End date&time in edit calendar entry popup.
diff --git a/calendar/templates/default/edit.xet b/calendar/templates/default/edit.xet
index ccb0988322..b55f8784b4 100644
--- a/calendar/templates/default/edit.xet
+++ b/calendar/templates/default/edit.xet
@@ -112,7 +112,7 @@
 						<menulist>
 							<menupopup type="select-account" statustext="User or group" id="account" multiple="true" no_lang="true" tags="true" account_type="both" empty_label="User or group" class="et2_fullWidth" width="99%"/>
 						</menulist>
-						<link-entry id="resource" options="@cal_resources"/>
+						<link-entry id="resource" options="@cal_resources" query="app.calendar.edit_participant_search"/>
 					</vbox>
 					<vbox span="2" valign="middle">
 						<textbox type="integer" align="center" id="quantity" min="1" size="3"/>
diff --git a/resources/inc/class.resources_bo.inc.php b/resources/inc/class.resources_bo.inc.php
index fb9ea02023..748955f0f8 100755
--- a/resources/inc/class.resources_bo.inc.php
+++ b/resources/inc/class.resources_bo.inc.php
@@ -588,11 +588,11 @@ class resources_bo
 		$data = $this->so->search($criteria,$only_keys,$order_by='name',$extra_cols='',$wildcard='%',$empty,$op='OR',$limit,$filter);
 		// maybe we need to check disponibility of the searched resources in the calendar if $pattern ['exec'] contains some extra args
 		$show_conflict=False;
-		if (is_array($pattern) && isset($pattern['exec']) )
+		if ($options['exec'])
 		{
 			// we'll use a cache for resources info taken from database
 			static $res_info_cache = array();
-			$cal_info=$pattern['exec'];
+			$cal_info=$options['exec'];
 			if ( isset($cal_info['start']) && isset($cal_info['duration']))
 			{
 				//get a calendar objet for reservations
@@ -602,11 +602,7 @@ class resources_bo
 					$this->bocal =& CreateObject('calendar.calendar_bo');
 				}
 
-				//get the real timestamps from infos we have on the event
-				//use etemplate date widget to handle date values
-				require_once(EGW_INCLUDE_ROOT.'/phpgwapi/inc/class.jscalendar.inc.php');
-				$jscal=& CreateObject('phpgwapi.jscalendar');
-				$startarr= $jscal->input2date($cal_info['start']['str'],$raw='raw',$day='day',$month='month',$year='year');
+				$startarr= getdate(strtotime($cal_info['start']));
 				if (isset($cal_info['whole_day'])) {
 					$startarr['hour'] = $startarr['minute'] = 0;
 					unset($startarr['raw']);
@@ -673,7 +669,7 @@ class resources_bo
 			}
 		}
 		if (isset($res_info_cache)) {
-			$show_conflict= (isset($pattern['exec']['show_conflict'])&& ($pattern['exec']['show_conflict']=='0'))? False:True;
+			$show_conflict= (isset($options['exec']['show_conflict'])&& ($options['exec']['show_conflict']=='0'))? False:True;
 			// if we have this array indexed on resource id it means non-bookable resource are removed and we are working for calendar
 			// so we'll loop on this one and not $data
 			foreach($res_info_cache as $id => $resource) {