var browser 	= navigator.appName;
var ver 		= navigator.appVersion;
var thestart 	= parseFloat(ver.indexOf("MSIE"))+1;
var brow_ver 	= parseFloat(ver.substring(thestart+4,thestart+7));

if ((browser=="Microsoft Internet Explorer") && (brow_ver <= 6)) {
	window.location = baseUrl() + "por-favor-atualize-seu-browser"; 
}

function baseUrl() {
	urlParts = location.toString().split("/");
	return urlParts[0] + '/' + urlParts[1]+ '/' + urlParts[2]+ '/';
}