function msover(img1,ref1)
{
  app = navigator.appName;
  ver = navigator.appVersion;
  mac = ver.indexOf("Macintosh") > 0;
  win = ver.indexOf("Win") > 0;
  vnum = parseFloat(ver);
  brTest = (((app == "Netscape") && (vnum >= 3 )) || ((mac) && (app == "Microsoft Internet Explorer") && (vnum >= 3.01 )) || ((win) && (app == "Microsoft Internet Explorer") && (vnum >= 4 )))
	if (brTest)
  {
   document.images[img1].src = ref1;
  }
}
function msout(img1,ref1)
{
  app = navigator.appName;
  ver = navigator.appVersion;
  mac = ver.indexOf("Macintosh") > 0;
  win = ver.indexOf("Win") > 0;
  vnum = parseFloat(ver);
  brTest = (((app == "Netscape") && (vnum >= 3 )) || ((mac) && (app == "Microsoft Internet Explorer") && (vnum >= 3.01 )) || ((win) && (app == "Microsoft Internet Explorer") && (vnum >= 4 )))
	if (brTest)
	{
	  document.images[img1].src = ref1;
	}
}