browser = navigator.appName;
  	
  	os = navigator.platform;
	var nVer = navigator.appVersion;
	var nAgt = navigator.userAgent;
	
	var fullVersion = parseFloat(nVer);
	var majorVersion = parseInt(nVer);

	// In Internet Explorer, the true version is after "MSIE" 
	if ((verOffset=nAgt.indexOf("MSIE"))!=-1) {
		// parseFloat gives what resembles a decimal number
		fullVersion = parseFloat(nAgt.substring(verOffset+5,nAgt.length));
		majorVersion = parseInt(''+fullVersion);
	}

	// In Netscape
	if (browser == 'Netscape' ) {
		// parseFloat gives what resembles a decimal number
		majorVersion = parseFloat(nVer);
	}

	if ((browser == 'Netscape') || (browser == 'Microsoft Internet Explorer')){
		// for both NS and IE redirect if major version is less than 5
	  	if (majorVersion < 5) {
			alert("Our website requires a Internet Explorer or Netscape versions 5.0 or higher. You may experience problems shopping or placing orders with an older browser.  Please upgrade to a newer web browser when you can.")
			//window.location="#myself##xfa.browser#";
		}		
	}