function openWindow(site,frame,w,h,sb)
	{
	var topPosition = (screen.height / 2) - (h / 2);
	var leftPosition = (screen.width / 2) - (w / 2);
	if(sb == 1)
		{
		window.open(''+site+'',''+frame+'');
		}
	else
		{
		window.open(''+site+'',''+frame+'','width='+w+',height='+h+',scrollbars='+sb+',top='+topPosition+',left='+leftPosition+'');
		}
	}