var browserName=navigator.appName;

if (browserName=="Netscape") { 
document.write ("<link href='../styles/jdc-ff-styles.css' rel='stylesheet' type='text/css' />");
}
else { 

 if (browserName=="Microsoft Internet Explorer") {
 document.write ("<link href='../styles/jdc-ie-styles.css' rel='stylesheet' type='text/css' />");
 }
 else {
 document.write ("<link href='../styles/jdc-ie-styles.css' rel='stylesheet' type='text/css' />");
  }
}