DOM = document.getElementById;
Netscape4 = document.layer;
Netscape6 = Mozilla = (navigator.appName == "Netscape") && DOM;
Netscape7 = navigator.userAgent.indexOf("Netscape/7") >= 0;
Opera5 = window.opera && DOM;
Opera6 = Opera5 && window.print;
Opera7 = Opera5 && navigator.userAgent.indexOf("Opera 7") >= 0;
Opera8 = Opera5 && navigator.userAgent.indexOf("Opera 8") >= 0;
IE = document.all && !Opera5;
Firefox = navigator.userAgent.indexOf("Firefox") >= 0;
Safari = navigator.userAgent.indexOf("Safari") >= 0;
Camino = navigator.userAgent.indexOf("Camino") >= 0;

if(IE) document.write("<link href='http://www.tfn.ru/ie.css' type='text/css' rel='stylesheet' />");