var isWindows						= (navigator.userAgent.indexOf("Windows") >= 0);
var isLinux							= (navigator.userAgent.indexOf("Linux") >= 0);
var isMac							= (navigator.userAgent.indexOf("Mac") >= 0);
var isIE 							= (document.all && !window.opera ? true : false);
var isFirefox						= (navigator.userAgent.indexOf("Firefox") >= 0);
var isOpera 						= (window.opera ? true : false);
var isSafari						= (navigator.userAgent.indexOf("Safari") >= 0);
var isCamino						= (navigator.userAgent.indexOf("Camino") >= 0);
var isKonquerer						= (navigator.appName == "Konquerer");
var ieVersion						= -1;

if (isIE){
	var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
	
	if (re.exec(navigator.userAgent) != null){
		ieVersion = parseFloat(RegExp.$1);
	}
}

if (isMac && bDOM){
	var oLink = document.createElement("link");
	
	oLink.setAttribute("rel", "stylesheet")
	oLink.setAttribute("type", "text/css")
	oLink.setAttribute("href", "/css/common_mac.css")
  
	document.getElementsByTagName("head")[0].appendChild(oLink);
}