Javascript仅适用于chrome和FireFox，不适用于IE

        //return value in the admin/user select in url to get result via $_GET when page reloads
       function toggleView() {
        //parse url to remove all parameters other than ghost_id
         var url = window.location.href.split(\"&\")[0];
         var view_type = $(\"#toggle_view\").val();
        //reload page with view type selected 
         window.location.href = url+\"&view_type=\"+view_type;    
        }