if  ((navigator.appVersion.indexOf("X11") != -1)) {
   document.write("<LINK REL=stylesheet HREF=\"css/X11.css\" TYPE=\"text/css\">"); }
else if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) < 4 )) {
   document.write("<LINK REL=stylesheet HREF=\"css/ie3.css\" TYPE=\"text/css\">"); }
else if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) > 3 )) {
   document.write("<LINK REL=stylesheet HREF=\"css/win.css\" TYPE=\"text/css\">"); } 
else if ((navigator.appVersion.indexOf("Mac") != -1)) {
   document.write("<LINK REL=stylesheet HREF=\"css/mac.css\" TYPE=\"text/css\">"); }
else {
   document.write("<LINK REL=stylesheet HREF=\"css/moz.css\" TYPE=\"text/css\">"); }


  test =(
	 ( (navigator.appName == "Netscape") && (parseInt(navigator.appVersion)) >= 3 ) ||
	 ( (navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion)) >= 4 )
	 );