function newwin3()
{
sub = window.open("banner/index.html","window1","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=500,height=300");
x = (screen.width  - 500) / 2;
y = (screen.height - 300) / 2;
sub.moveTo(x,y);
}