if (document.layers) {
	// Netscape 4
	document.write('<link rel="stylesheet" href="/css/gr_nn4.css" type="text/css">\n');
} else if (document.all) {
	// document.all -- IE
	document.write('<link rel="stylesheet" href="/css/gr_styles.css" type="text/css">\n');
} else if (document.getElementById) {
	// Netscape 6
	document.write('<link rel="stylesheet" href="/css/gr_nn6.css" type="text/css">\n');
} else {
	document.write('<link rel="stylesheet" href="/css/gr_styles.css" type="text/css">\n');
}