<!--
     var NN 	= document.layers;
     var IE 	= document.all;
     var MAC = (navigator.appVersion.indexOf("Mac") != -1);
     var X11 = (navigator.appVersion.indexOf("X11") != -1); 
     var MACIE = (IE && MAC);
     var MACIE5 = (IE && MAC && (navigator.appVersion.indexOf("MSIE 5.0")!=-1));

	   var url="css/";
	
	 		cstyle="pcie.css";
	 
     if (MAC)
     { 
	 			if (IE) cstyle="macie.css";
      	if (NN) cstyle="macns.css"; 
     }  
     else 
     { 
	 			if (IE) cstyle="pcie.css";
      	if (NN) cstyle="pcns.css"; 
     } 
	 
     document.write('<link rel=stylesheet type="text/css" HREF="'+url+cstyle+'">');
 //--> 