Fix #51 search path issue.

Author: jaywcjlove

template/js/index.js

@@ -11,7 +11,7 @@
         this.root_path = (function(){
             var elm_path = $$('current_path');
             var url = window.location.origin+window.location.pathname;
-            return elm_path?url.replace(elm_path.value,'').replace(/\/$/,''):'';
+            return elm_path ? url.replace(/\/c\/\w+\.html/, '').replace(/\/$/,''):'';
         })();
 
         this.query = '';     //