if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) < 4 ))
{document.write("<LINK REL=stylesheet HREF=\"/stylesheets/mainnonIE.css\" TYPE=\"text/css\">"); }
if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) > 3 ))
{document.write("<LINK REL=stylesheet HREF=\"/stylesheets/main.css\" TYPE=\"text/css\">"); }
if ((navigator.appName !== "Microsoft Internet Explorer"))
{document.write("<LINK REL=stylesheet HREF=\"/stylesheets/mainnonIE.css\" TYPE=\"text/css\">"); }