function popup(mylink, windowname)
			{
				var href;
				if (typeof(mylink) == 'string')
				   href=mylink;
				else
				   href=mylink.href;
				newwindow=window.open(href, windowname, 'width=575,height=500,scrollbars=yes,top=50,left=500');
				if (window.focus) {newwindow.focus();}
				return false;
			}