Mac = "css/mac.css";
Netscape = "css/ns.css";
Explorer = "css/ie.css";

if((navigator.appVersion.indexOf("Mac")!= -1)){
   document.write("<link rel='stylesheet' href='" + Mac + "' type='text/css'>");
}
else if(document.layers){
   document.write("<link rel='stylesheet' href='" + Netscape + "' type='text/css'>");
} else {
   document.write("<link rel='stylesheet' href='" + Explorer + "' type='text/css'>");
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}