<script type="text/javascript">
            function openWin(url, title, w, h) {
                var left = (screen.width/2)-(w/2);
                var top = (screen.height/2)-(h/2);
                //myWindow = window.open('+url+', 'myWindow', width='+w+', height=+h+, left=+ left + ,top= + top + ,screenX= + left + ,screenY=+ top +);
                return window.open(url, title, 'width='+w+', height='+h+', top='+top+', left='+left);
            }
        </script>