function popup(url, name, height, width, scrollbars) 
{ 
        var popwin; 
        var opts = "toolbar=no,status=no,location=no,menubar=no,resizable=no"; 
        opts += ",height=" + height + ",width=" + width + ",scrollbars=" + scrollbars; 
        
        popwin = window.open("", name, opts);                           
        popwin.focus();                         
        popwin.location = url;                          
}