//checkBrowser.js

var bDisplayMessage=true;
var av=navigator.appVersion;

// Check if IE and if so, check version
var iMSIE=parseInt(av.indexOf("MSIE"));

if (iMSIE>=1)
{
	// Get major version and write appropriate style
	var iVer=parseInt(av.charAt(iMSIE+5));
	if (iVer>=5)
	{
		bDisplayMessage=false;
	}
}  

if (bDisplayMessage)
{
	alert("This page may not be displayed properly:\n\
This product requires IE5.5 or later browser only.");
}