if (browserVersion.nav6) {
	document.write('<link rel="stylesheet" type="text/css" href="css/style.css">');
}
if (browserVersion.nav4up) {
	document.write('<link rel="stylesheet" type="text/css" href="css/style_n.css">');
}
if (browserVersion.ie4up) {
	document.write('<link rel="stylesheet" type="text/css" href="css/style.css">');
}