if(navigator.oscpu && document.getElementsByClassName) var Fx3andLater = true;

if (Fx3andLater == true ) {
	document.getElementById("haveFF").style.display = "block";
	document.getElementById("noFF").style.display = "none";
}else {
	document.getElementById("haveFF").style.display = "none";
	document.getElementById("noFF").style.display = "block";
}