if (detect_msie()) { with (document) {
  // alert('msie')
  writeln('<link rel="stylesheet" href="style_ie.css" type="text/css">');
}}
// alert(navigator.appVersion);

function detect_msie() {
  if (!navigator) return false;
  st= navigator.appVersion;
  if (!st) return false;
  return st.indexOf('MSIE')!=-1; // easy
}