browsername=navigator.appName;
if (browsername=="Netscape") {browsername=null;}
if (browsername=="Microsoft Internet Explorer" || browsername=="Opera" ) 
{
  var fileref=document.createElement("link")
  fileref.setAttribute("rel", "stylesheet")
  fileref.setAttribute("type", "text/css")
  fileref.setAttribute("href", "css/IE.css")
  document.getElementsByTagName("head")[0].appendChild(fileref)
}
if (browsername=="Microsoft Internet Explorer")
{
  trackIE(1);
}