function NewWindow(mypage)
{
	
	mypage = "checksponsor.php?advertid="+mypage;
	var myname = 'Adverts';
	var w = 770;
	var h = 75;
	var scroll = "no";
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;

	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable=no';
	win = window.open(mypage, myname, winprops)


	if (parseInt(navigator.appVersion) >= 4)
	{
		win.window.focus();
	}
}