var browserName=navigator.appName, browserRecognised=false, opera;
 if(browserName.indexOf("Netscape")>=0) {
  /* Netscape or Mozilla */
  document.write('<link rel="stylesheet" href="../netscape.css" type="text/css">')
  browserRecognised=true
 }
 else if(browserName.indexOf("Microsoft")>=0) {
  document.write('<link rel="stylesheet" href="../ie.css"       type="text/css">')
  browserRecognised=true
 }
 else if(browserName.indexOf("Opera")>=0) {
  document.write('<link rel="stylesheet" href="../opera.css"    type="text/css">')
  browserRecognised=true
  opera = true
 }