function popup(Fn, X, Y, Scroll)
{
 l = (screen.width) ? (screen.width-550) / 2 : 0;
 t = (screen.height) ? (screen.height-600) / 2 : 0; 
 NewWindow=window.open(Fn,'newwindow','width='+X+',height='+Y+',top='+t+',left='+l+',scrollbars='+Scroll+',toolbar=no,location=no,directories=no,status=no,resizable=no,menubar=no');
}
 
function popupresize(Fn, X, Y, Scroll)
{
 l = (screen.width) ? (screen.width-550) / 2 : 0;
 t = (screen.height) ? (screen.height-600) / 2 : 0; 
 NewWindow=window.open(Fn,'newwindow','width='+X+',height='+Y+',top='+t+',left='+l+',scrollbars='+Scroll+',toolbar=no,location=no,directories=no,status=no,resizable=yes,menubar=no');
}