fix bug

apps/exams/Tpl/default/Index/examsroom_w3g.html

@@ -330,13 +330,22 @@
 
     $(function () {
         iscollect(isCollect);
-        $('.next_question').on('click', function () {
+        $('.next_question').on('click', function (event) {
             alert(1);
-            window.location.href = 'http://www.baidu.com';
+            stopBubbling(event);
         });
 
 
     });
 
+    function stopBubbling(e) {
+        e = window.event || e;
+        if (e.stopPropagation) {
+            e.stopPropagation();      //阻止事件 冒泡传播
+        } else {
+            e.cancelBubble = true;   //ie兼容
+        }
+    }
+
 </script>
 <script src="__APP__/js/public_exam_3g.js"></script>