var IE = navigator.userAgent.indexOf("MSIE") != -1;
	var OP = (navigator.userAgent.indexOf("Opera/3") != -1);
	var NN = (navigator.appName == "Netscape") && !OP;
	
	var WIN = navigator.userAgent.indexOf("Win") != -1;
	var MAC = navigator.userAgent.indexOf("Mac") != -1;
	var LIN = navigator.userAgent.indexOf("Lin") != -1;
	
	var IEW = IE && WIN;
	var IEM = IE && MAC;
	var IEL = IE && LIN;
	var NNW = NN && WIN;
	var NNM = NN && MAC;
	var NNL = NN && LIN;
	
	
	CSSIE = '/Stylesheet/defaultIE.css';
	CSSIEM = '/Stylesheet/macIE.css';
	CSSNN = '/Stylesheet/defaultNN.css';
	CSSNNM = '/Stylesheet/macNN.css';
	
	LINK1 = '<LINK REL="stylesheet" HREF="';
	LINK2 = '" TYPE="text/css">';
	
	if (IEW)
	{document.write(LINK1 + CSSIE + LINK2);}
	
	if (IEM)
	{document.write(LINK1 + CSSIEM + LINK2);}
	
	if (IEL)
	{document.write(LINK1 + CSSIE + LINK2);}
	
	if (NNW)
	{document.write(LINK1 + CSSNN + LINK2);}
	
	if (NNM)
	{document.write(LINK1 + CSSNNM + LINK2);}
	
	if (NNL)
	{document.write(LINK1 + CSSNN + LINK2);}