fix bug

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

@@ -263,6 +263,7 @@
 </div>
 <include file="__THEME__/public_footer_w3g"/>
 <script src="__APP__/js/public_header_footer_media.js"></script>
+<script src="__APP__/js/public_exam_3g.js"></script>
 <script type="text/javascript">
     if("{$_GET['examsresult']}"){
         var re = "{:jiemi($_GET['examsresult'])}",
@@ -350,4 +351,4 @@
     }
 
 </script>
-<script src="__APP__/js/public_exam_3g.js"></script>
+