bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
var platform = navigator.platform.substring(0,3).toUpperCase();

if(platform == "WIN")
{
	if(bName == "Netscape")
	{
		if(bVer == "4")
			document.write("<LINK rel=\"stylesheet\" href=\"http://comet.nerc.ac.uk/cometstyle_nav4.css\" TYPE=\"text/css\">");
		else
			document.write("<LINK rel=\"stylesheet\" href=\"http://comet.nerc.ac.uk/cometstyle_nav5.css\" TYPE=\"text/css\">");
	}
	else
		document.write("<LINK rel=\"stylesheet\" href=\"http://comet.nerc.ac.uk/cometstyle_ie.css\" TYPE=\"text/css\">");
}


if(platform == "LIN")
	document.write("<LINK rel=\"stylesheet\" href=\"http://comet.nerc.ac.uk/cometstyle_lin.css\">");

if(platform == "SUN")
	document.write("<LINK rel=\"stylesheet\" href=\"http://comet.nerc.ac.uk/cometstyle_sun.css\">");

if(platform == "MAC")
	document.write("<LINK rel=\"stylesheet\" href=\"http://comet.nerc.ac.uk/cometstyle_mac.css\">");

if(platform != "WIN" && platform != "LIN" && platform != "SUN" && platform != "MAC")
	document.write("<LINK rel=\"stylesheet\" href=\"http://comet.nerc.ac.uk/cometstyle_ie.css\" TYPE=\"text/css\">");