function event()
{
sub = window.open("recruit.html","event","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=600,height=700");
xpos=(screen.width-420)/2;
ypos=(screen.height-600)/2;
sub.moveTo(xpos,ypos);
op.focus();
}