function openPage(url, winName, width, height) { 
var winArgs = 'width='+width; 
winArgs = winArgs + ',height='+height; 
winArgs = winArgs + ',directories=no,location=yes,menubar=no,scrollbars=no,status=no,toolbar=no,resizable=no'; 
window.open(url, winName, winArgs); 
}