// The purpose of this script is to detect the user's browser. If the browser version is not high enough, and therefore
// deemed problematic, the user is suggested to upgrade his or her browser.

function detectBrowser()
{
var browser=navigator.appName;
var b_version=navigator.appVersion;
var version=parseFloat(b_version);
if ((browser=="Netscape"||browser=="Microsoft Internet Explorer") && (version>=4))
  {
  
  }
else
  {
  alert("Please upgrade your browser in order to view this web page properly. Preferred browsers are Internet Explorer, Firefox, and Safari.");
  }
}
window.onload = detectBrowser;