diff --git a/zsite/static/js/snippets.js b/zsite/static/js/snippets.js
index e97e444..60366b4 100644
--- a/zsite/static/js/snippets.js
+++ b/zsite/static/js/snippets.js
@@ -157,14 +157,14 @@ $(function() {
             paramValue = ''
         }
 
-        var pattern = new RegExp('\\b('+paramName+'=).*?(&|$)'),
+        var pattern = new RegExp('\\b(' + paramName + '=).*?(&|$)'),
             url = window.location.href;
         if (url.search(pattern) >= 0){
-            window.location = url.replace(pattern,'$1' + paramValue + '$2');
+            window.location = url.replace(pattern, '$1' + paramValue + '$2');
             return window.location;
         }
 
-        window.location = url + (url.indexOf('?')>0 ? '&' : '?') + paramName + '=' + paramValue;
+        window.location = url + '#' + (url.indexOf('?')>0 ? '&' : '?') + paramName + '=' + paramValue;
         return window.location;
     };
 });
\ No newline at end of file