function openWindow(contentURL,windowName,windowWidth,windowHeight) {
 widthHeight = 'location=0,resizable=0,status=0,titlebar=0,directories=0,toolbar=0,menubar=0,scrollbars=1,height=' + windowHeight + ',width=' + windowWidth;
 newWindow = window.open(contentURL,windowName,widthHeight);
 newWindow.focus()
}