diff --git a/js/ajax.js b/js/ajax.js
index b8cb7a7f54ff..361f000e322b 100644
--- a/js/ajax.js
+++ b/js/ajax.js
@@ -163,14 +163,14 @@ var AJAX = {
 
         //sometime we accidently click on a url,refresh button or back button
         //operation to confirm if user want to leave page in such cases
-        var flag = false;
+        var foundFieldNotEmpty = false;
         $("input[type='text']").each(function(index){
-            if($(this).val().length > 0) {
-                flag = true;
+            if ($(this).val().length > 0) {
+                foundFieldNotEmpty = true;
             }
         });
         //trigger confirm dialog
-        if (event.type === 'click' && flag && confirm(PMA_messages['strConfirmNavigation']) === false) {
+        if (event.type === 'click' && foundFieldNotEmpty && confirm(PMA_messages['strConfirmNavigation']) === false) {
             return false;
         }