diff --git a/theme/classic.html b/theme/classic.html
index c3919a1..17b04a9 100644
--- a/theme/classic.html
+++ b/theme/classic.html
@@ -229,7 +229,7 @@
                 <table class="list-table" id="list-table">
                     <tr id="tr0">
                         <th class="file">
-                            <a onclick="sortby('a');"><!--constStr@File--></a>
+                            <a id="file_a0" fileid="<!--FolderId-->" onclick="sortby('a');"><!--constStr@File--></a>
 <!--ShowThumbnailsStart-->
                             &nbsp;&nbsp;&nbsp;
                             <label><input type="checkbox" id="originalpic"><!--constStr@OriginalPic--></label>
@@ -1477,17 +1477,18 @@
         document.getElementById('mask').style.display='';
         //document.getElementById('mask').style.width=document.documentElement.scrollWidth+'px';
         document.getElementById('mask').style.height=document.documentElement.scrollHeight<window.innerHeight?window.innerHeight:document.documentElement.scrollHeight+'px';
+        var str;
         if (num=='') {
-            var str='';
-            var fileid='';
+            str = '';
+            num = 0;
         } else {
-            var str=decodeURIComponent(document.getElementById('file_a'+num).href);
+            str = decodeURIComponent(document.getElementById('file_a'+num).href);
             if (str.substr(-1)==' ') str=str.substr(0, str.length-1);
             if (str.substr(-1)=='/') str=str.substr(0, str.length-1);
             if (str.substr(-8)=='?preview') str=str.substr(0, str.length-8);
             if (str.lastIndexOf('/')>-1) str=str.substr(str.lastIndexOf('/')+1);
-            var fileid=document.getElementById('file_a'+num).attributes['fileid'].nodeValue;
         }
+        var fileid = document.getElementById('file_a'+num).attributes['fileid'].nodeValue;
         document.getElementById(action + '_div').style.display='';
         document.getElementById(action + '_label').innerText=str;//.replace(/&/,'&amp;');
         document.getElementById(action + '_sid').value=num;