function popup(mylink, windowname)
			{
			if (! window.focus)return true;
			var href;
			if (typeof(mylink) == 'string')
		   href=mylink;
			else
		   href=mylink.href;
			window.open(href, windowname, 'width=600,height=400,resizable=yes,scrollbars=yes');
			return false;
			}