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 = navigator.userAgent.indexOf("Opera/8") >= 0;
Opera9 = navigator.userAgent.indexOf("Opera/9") >= 0;
IE = document.all && !Opera5;
Firefox = navigator.userAgent.indexOf("Firefox") >= 0; 
if(IE) document.write('<link rel="stylesheet" media="all" href="/stylesIE.css" />');
else document.write('<link rel="stylesheet" media="all" href="/styles.css" />');