filter bug

@@ -159,8 +159,11 @@ function checkMoreBrands(callback) {
     var brandsHtml;
     var params = (location.search || '').substr(1);
 
-    if (!moreBrandLoaded) {
+    if(moreBrandLoaded === 'loading') {
+        return;
+    } else if (!moreBrandLoaded) {
 
+        moreBrandLoaded = 'loading';
         $.getJSON(url, params, function(jsonData) {
 
             if (jsonData.code === 200) {