<!--
function is_msie ()
{
	return (navigator.appName == "Microsoft Internet Explorer");
}

function is_xp ()
{
	if (is_msie ())
		return (navigator.userAgent.indexOf ("Windows NT 5.1") > 0);

	return false;
}

function is_mozilla ()
{
	return (navigator.appName == "Netscape");	
}

function is_vista ()
{
	return (navigator.userAgent.indexOf ("Windows NT 6.0") > 0);
}

//-->