browser = navigator.appName;
browserVer = parseInt( navigator.appVersion );
//alert("appName = " + navigator.appName + "\n" + "appVersion = " + navigator.appVersion + "\n" + "userAgent = " + navigator.userAgent + "\n" + "parseInt = " + parseFloat(navigator.appVersion.toLowerCase()))
if( browser.indexOf( "Netscape" ) != -1 && browserVer < 5 ) {
	document.write("<link rel=\"stylesheet\" href=\"stylesheet_nn.css\" type=\"text/css\">");
} else {
	document.write("<link rel=\"stylesheet\" href=\"stylesheet_ie.css\" type=\"text/css\">");
}