function infolink(filename) {
	wwidth = 450;
	hheight = 300;
	wndinfo = open("",
             "Info",
             "width=" + wwidth + ",height=" + hheight +
             ",left=200,top=200,toolbar=0,locationbar=0,directories=0,status=0,menubar=0," +
             "scrollbars=yes,resizable,dependent");
	wndinfo.location.href=filename;
	wndinfo.focus();
}