//if ((document.layers) || ((navigator.userAgent.indexOf("Mac") >= 0) && ((navigator.appVersion.indexOf("MSIE") < 0) && (parseInt(navigator.appVersion) < 5)))) {
if ((navigator.appVersion.indexOf("MSIE 5") < 0) && (navigator.appVersion.indexOf("MSIE 6") < 0)) {
	document.write('<link rel="stylesheet" href="http://www.computing.vt.edu//styles/computing_ns4.css" type="text/css">');
}