Index: branches/5.2.x/core/admin_templates/js/forms.js
===================================================================
diff -u -N -r14685 -r15042
--- branches/5.2.x/core/admin_templates/js/forms.js	(.../forms.js)	(revision 14685)
+++ branches/5.2.x/core/admin_templates/js/forms.js	(.../forms.js)	(revision 15042)
@@ -59,18 +59,17 @@
 }
 
 function InitEditors() {
-	// process all FCKEditor instances
-	var iframes = document.getElementsByTagName('IFRAME');
+	if ( !$.isEmptyObject($CKEditors) ) {
+		// process all CKEditor instances
+		CKEDITOR.on(
+			'instanceReady',
+			function( ev ) {
+				FCKeditor_OnComplete( CKEDITOR.instances[ ev.editor.name ] );
+			}
+		)
 
-	for (var i = 0; i < iframes.length; i++) {
-		if (iframes[i].id.match(/___Frame$/) && iframes[i].getAttribute('latesrc')) {
-			var $iframe = iframes[i];
-
-			setTimeout(
-				function () {
-					LoadFCKEditor($iframe);
-				}, 0
-			);
+		for (var $editor_id in $CKEditors) {
+			CKEDITOR.replace($editor_id, $CKEditors[$editor_id]);
 		}
 	}
 
@@ -80,10 +79,6 @@
 	}
 }
 
-function LoadFCKEditor($iframe) {
-	$iframe.contentWindow.location = $iframe.getAttribute('latesrc');
-}
-
 function Form() {}
 
 Form = new Form();
@@ -143,7 +138,7 @@
 
 	addEvent(window, 'resize', function() {Form.Resize()})
 
-	this.Resize();
+	this.Resize(false);
 
 	if (isset(first_error)) {
 		for (var i in first_error) {
@@ -213,11 +208,19 @@
 	return parseInt($size);
 }
 
-Form.Resize = function() {
+Form.Resize = function($init_done) {
 	if (!this.Div) {
 		return ;
 	}
 
+	if ( ($init_done === true || $init_done === undefined) && !$.isEmptyObject($CKEditors) ) {
+		// process all CKEditor instances
+		for (var $editor_id in $CKEditors) {
+			var $ckeditor_textarea = $( '#' + jq($editor_id) );
+			CKEDITOR.instances[ $editor_id ].resize( $ckeditor_textarea.width(), $ckeditor_textarea.height() );
+		}
+	}
+
 	var h = (document.all ? window.document.body.offsetHeight : window.innerHeight);
 
 	var $div = $(this.Div);