<!--
function checkbrowser(NSvers,IEvers) 
{
  var verStr=navigator.appVersion, app=navigator.appName, version = parseFloat(verStr), tmp = 0;
//  alert(navigator.appVersion + ": " + navigator.appName + ": " + parseFloat(verStr));
  if (app.indexOf('Netscape') != -1) 
  {
    if (version < NSvers) tmp = 1;
  }
  else if (app.indexOf('Microsoft') != -1)
  {
//    alert(version+" "+IEvers+" "+verStr.indexOf(IEvers));
    if (version >= IEvers || verStr.indexOf(IEvers) != -1) tmp = 1;
  }
  else tmp = 1;
  if (tmp == 1) 
  { 
    alert("This site is best viewed with IE 5.5+ and Netscape 6.0+"); 
  }
}

checkbrowser(5,5.5);
//-->