//  keeps track of the delete button for the row
        //  that is going to be removed
        var _source;
        // keep track of the popup div
        var _popup;
         
        function showConfirm(source){
            this._source = source;
            this._popup = $find('mdlPopup');
            
            //  find the confirm ModalPopup and show it    
            this._popup.show();
        }
        
        function okClick(){
            //  find the confirm ModalPopup and hide it    
            this._popup.hide();
            //  use the cached button as the postback source
            __doPostBack(this._source.name, '');
        }
        
        function cancelClick(){
            //  find the confirm ModalPopup and hide it 
           // this._popup.hide();
            //  clear the event source
           // this._source = null;
           // this._popup = null;
            if (typeof(_url)!="undefined" && _url!="") {
                window.location = _url;
            }
        }