
<!--

function isIE4NS4 () 
{
browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 4 )) || 
((navigator.appName == "Microsoft Internet Explorer") &&  (parseInt(navigator.appVersion) >= 4 )))

if (browser) 
 return true
else
 alert("We are only support IE4 ,NS4 and higher.")
 return false
}

//-->