var nome=navigator.userAgent;
brow=nome.search("Mac");
		
if (brow != -1)  {
   document.write("<LINK REL='stylesheet' HREF='/css/syngentamac.css' TYPE='text/css'>"); }
else if (navigator.appName == "Microsoft Internet Explorer") {
   document.write("<LINK REL='stylesheet' HREF='/css/syngentaie.css' TYPE='text/css'>"); }
else {
   document.write("<LINK REL='stylesheet' HREF='/css/syngentanetscape.css' TYPE='text/css'>"); }