function renderRateStyle() {
	var browser=navigator.appName;
	var b_version=navigator.appVersion;
	var version=parseFloat(b_version);

	// mozilla, safari
	if (browser=="Netscape") {
		var ua = navigator.userAgent;
		var re  = new RegExp("Firefox/([0-9]{1,}[\.0-9]{0,})");
		var re2  = new RegExp("Safari*");
		if (re.exec(ua) != null) {
			rv = parseFloat( RegExp.$1 );
			if (rv<=2) { setCSSFile("/sitegen/styles/mainrates.css"); }
			else { setCSSFile("/sitegen/styles/mainrates-ff3.css"); }
		} else if (re2.exec(ua) != null) {
			setCSSFile("/sitegen/styles/mainrates-safari.css");
		}
	// ie6 and above
	} else if (browser=="Microsoft Internet Explorer") {
		var ua = navigator.userAgent;
		var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
		if (re.exec(ua) != null) {
			rv = parseFloat( RegExp.$1 );
			if (rv<=6) { setCSSFile("/sitegen/styles/mainrates-ie.css"); }
			else { setCSSFile("/sitegen/styles/mainrates-ie7.css"); }
		}
	// opera and others
	} else {
		setCSSFile("/sitegen/styles/mainrates-other.css");
	}
}

function setCSSFile(cssfile) {
	var cssNode = document.createElement('link');
	cssNode.setAttribute('rel', 'stylesheet');
	cssNode.setAttribute('type', 'text/css');
	cssNode.setAttribute('href', cssfile);
	document.getElementsByTagName('head')[0].appendChild(cssNode);
}