var browserType;
	var majorVersion;
	var minorVersion;
	if( (navigator.appName.toLowerCase()).indexOf("netscape") >= 0)
		browserType = 1;
	else if( (navigator.appName.toLowerCase()).indexOf("explorer") >= 0)
		browserType = 2;
	else 
		browserType = 3;
	majorVersion = parseInt(navigator.appVersion);
	minorVersion = parseFloat(navigator.appVersion);	
	switch(browserType) 
	{
	case 1:
		if(majorVersion < 5)
			document.write('<link rel="stylesheet" type="text/css" href="mattsson_ns.css">');
		else
			document.write('<link rel="stylesheet" type="text/css" href="mattsson.css">');	
		break;
	default: 
		document.write('<link rel="stylesheet" type="text/css" href="mattsson.css">');
		break;	
	}