var ievs = (/MSIE (\d+\.\d+);/.test(navigator.userAgent));

// IF BROWSER IS IE 6 LOAD IE6 STYLE

if (ievs){
	var iev=new Number(RegExp.$1);
	if (iev==6) {
		document.write('<div id="old-browser" class="no_javascript">Your browser is too old to enjoy all Revisitors.com features. Please update it!</div>');
	}
}