var bName = navigator.appName.toLowerCase();
var bVer = navigator.appVersion.toLowerCase();

if (bVer.indexOf("x11") != -1)
		{
		document.write("<link rel=stylesheet type='text/css' href='stylesheets/unix.css'>")
		}
		
else if (bName == "netscape")
	{
	if ((parseInt(bVer) < 5) && (bVer.indexOf("mac") != -1))
		{
		document.write("<link rel=stylesheet type='text/css' href='stylesheets/nn4mac.css'>")
		}
	else
		{
		document.write("<link rel=stylesheet type='text/css' href='stylesheets/nn.css'>")
		}
	}
	
else
	{
	if ((bVer.indexOf("msie 4") != -1) && (bVer.indexOf("mac") != -1))
		{
		document.write("<link rel=stylesheet type='text/css' href='stylesheets/ie4mac.css'>")
		}
	else
		{
		document.write("<link rel=stylesheet type='text/css' href='stylesheets/ie.css'>")
		}
	}