Index: branches/5.3.x/core/admin_templates/js/ajax.js
===================================================================
diff -u -N -r15483 -r15677
--- branches/5.3.x/core/admin_templates/js/ajax.js	(.../ajax.js)	(revision 15483)
+++ branches/5.3.x/core/admin_templates/js/ajax.js	(.../ajax.js)	(revision 15677)
@@ -318,44 +318,35 @@
 // AJAX PopupManager class
 function AjaxPopupManager($url) {
 	this.URL = $url;
-	this.ResponceFunction = null;
-	this.PopupSizes = new Array();
+	this.PopupSizes = [];
 }
 
-AjaxPopupManager.prototype.GetSize = function ($template) {
-	if (this.ResponceFunction == null) {
-		alert ('Please define responce function first (type: '+typeof(this.ResponceFunction)+')');
+AjaxPopupManager.prototype.GetSize = function ($template, $callback) {
+	if ( $callback === undefined || !$.isFunction($callback) ) {
+		alert('Please specify callback');
 	}
 
-	if (!isset(this.PopupSizes[$template])) {
-		var $url = this.URL + '&type=GetPopupSize&template_name=' + $template;
-//		alert('from ajax: '+$url);
-		Request.makeRequest($url, this.BusyRequest, '', this.successCallback, this.errorCallback, ['GetSize', $template], this);
+	if ( !isset(this.PopupSizes[$template]) ) {
+		var $me = this;
+
+		$.get(
+			this.URL,
+			{
+				'events[adm]': 'OnGetPopupSize',
+				'template_name': $template
+			},
+			function ($popup_size) {
+				// store response to cache for future use
+				$me.PopupSizes[$template] = $popup_size;
+				$callback($popup_size);
+			}
+		);
 	}
 	else {
-//		alert('from cache');
-		this.ResponceFunction(this.PopupSizes[$template]);
+		$callback(this.PopupSizes[$template]);
 	}
-}
+};
 
-AjaxPopupManager.prototype.successCallback = function($request, $params, $object) {
-	var $responce = $request.responseText;
-
-	switch ($params[0]) {
-		case 'GetSize':
-			// store responce to cache for future use
-			$object.PopupSizes[ $params[1] ] = $responce;
-			break;
-	}
-
-	$object.ResponceFunction($responce);
-	$object.ResponceFunction = null; // reset responce function
-}
-
-AjaxPopupManager.prototype.errorCallback = function($request, $params, $object) {
-	alert('AJAX Error; class: AjaxPopupManager; ' + Request.getErrorHtml($request));
-}
-
 // AJAX DropdownPreloader class
 function AjaxDropdownPreloader($url, $input_mask, $filter_field, $dependend_field, value, $has_empty) {
 	this.URL = $url;