var xPos1, yPos1;
                    var prm1 = Sys.WebForms.PageRequestManager.getInstance();
                    prm1.add_beginRequest(BeginRequestHandler);
                    prm1.add_endRequest(EndRequestHandler);
                    
                    
                    function BeginRequestHandler(sender, args) {
                        xPos1 = $get('ctl00_ContentPlaceHolder1_Panel1').scrollLeft;
                        yPos1 = $get('ctl00_ContentPlaceHolder1_Panel1').scrollTop;
                   }
                    function EndRequestHandler(sender, args) {
                        $get('ctl00_ContentPlaceHolder1_Panel1').scrollLeft = xPos1;
                        $get('ctl00_ContentPlaceHolder1_Panel1').scrollTop = yPos1;
                    
                    }