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;
	IE = document.all && !Opera5;
	Firefox = navigator.userAgent.indexOf("Firefox") >= 0;
	if(IE) document.write("<link rel='stylesheet' href='css/ie_style.css' type='text/css'>");
	else document.write("<link rel='stylesheet' href='css/style.css' type='text/css'>");