agent = navigator.userAgent;
	version = parseFloat(navigator.appVersion);

	isns4 = (
		(agent.indexOf("Mozilla") != -1) &&
		(agent.indexOf("compatible") == -1) &&
		(agent.indexOf("spoofer") == -1) &&
		(version >= 4)
				);

	isie4 = (
		(agent.indexOf("MSIE") != -1) &&
		(version >= 4)
				);

	if ( isie4 || isns4 )
	{
		document.write("<style>p,h1,a,strong{color:white}</style>");
		// hide stupid lynx info in ns4 (which doesn't change location immediately...)
		document.location = "gfx-page.html";
	};