Fix for widget sort with IE7. Props filosofo. see #5292 #5583

git-svn-id: http://svn.automattic.com/wordpress/trunk@6571 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/widgets.js

@@ -102,11 +102,20 @@ jQuery(function($) {
 
 	$('a.widget-control-add').click( addClick );
 
-	// initialize sortable
-	var widgetSortable = $('#current-sidebar .widget-control-list').Sortable( {
+	var widgetSortable;
+	var widgetSortableInit = function() {
+		try { // a hack to make sortables work in jQuery 1.2+ and IE7
+			$('#current-sidebar .widget-control-list').SortableDestroy();
+		} catch(e) {}
+		widgetSortable = $('#current-sidebar .widget-control-list').Sortable( {
 			accept: 'widget-sortable',
 			helperclass: 'sorthelper',
-		handle: 'h4.widget-title'
+			handle: 'h4.widget-title',
+			onStop: widgetSortableInit
 		} );
+	}
+
+	// initialize sortable
+	widgetSortableInit();
 
 });