function enlargeImage(Url, width, height) {
var enlarged = new Image();
enlarged.src = '' + Url + '';
var prevW = window.open("", "newWin", "width=" + width + ",height=" + height + ",top=140,left=200,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0");
prevW.document.write('Preview Image
');
}