function popup_special(url, target, align, width, height, once, under, left, top)
{
	if (once) {
		var popcookies = document.cookie;
		if (popcookies.indexOf(target) >= 0) {
			return;
		}
	}
	
	if (align == 'center') {
		var left = (screen.width - width) / 2;
		var top = (screen.height - height) / 2;
	} else if (align == 'top') {
		var left = (screen.width - width) / 2;
		var top = 0;
	}
	
	var pop = window.open(url, target, 'toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbar=no,resizable=no,copyhistory=no,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
	pop.focus();
	
	if (under)
	{
		pop.blur();
		self.focus();
	}
	
	if (once) {
		var d = new Date();
		var expires = d.getTime() + (24 * 60 * 60 * 1000);
		d.setTime(expires);
		document.cookie = target+"=used; expires="+d.toGMTString()+";";
	}
}