  <!-- hide script from old browsers

  //detect browser:
  browserName = navigator.appName;
  browserVer = parseInt(navigator.appVersion);
  if (browserName == "Netscape" && browserVer >= 3) browserVer = "1";
  else if (browserName == "Microsoft Internet Explorer" && browserVer == 4) browserVer = "1";
  else browserVer = "2";

  //preload images:
  if (browserVer == 1) {
  b1u=new Image(144,50)
  b1u.src="b_home.jpg"
  b1d=new Image(144,50)
  b1d.src="b_home_d.jpg"
  b2u=new Image(144,50)
  b2u.src="b_serv.jpg"
  b2d=new Image(144,50)
  b2d.src="b_serv_d.jpg"
  b3u=new Image(144,50)
  b3u.src="b_about.jpg"
  b3d=new Image(144,50)
  b3d.src="b_about_d.jpg"
  b4u=new Image(144,50)
  b4u.src="b_contact.jpg"
  b4d=new Image(144,50)
  b4d.src="b_contact_d.jpg"
  }

  //image swapping function:
  function hiLite(imgDocID, imgObjName, comment) {
  if (browserVer == 1) {
  document.images[imgDocID].src = eval(imgObjName + ".src");
  window.status = comment; return true;
  }}
  //end hiding -->