function initBrowserDetect()
{
	var u = navigator.userAgent.toLowerCase();
	var _html = document.getElementsByTagName("html")[0];
	
	if(is("win")) addClass("win");
	else if(is("mac")) addClass("mac");
	else if(is("linux") || is("x11")) addClass("linux");
	
	if(is("msie 8.0")) addClass("msie8");
	else if(is("opera/9")) addClass("opera");
	else if(is("opera/10")) addClass("opera");
		
	function is(browser)
	{
		if(u.indexOf(browser) !=-1) return true;
	}
	function addClass(_class)
	{
		_html.className += (" " + _class);
	}
}
if (window.addEventListener)
	window.addEventListener("load", initBrowserDetect, false);
else if (window.attachEvent)
	window.attachEvent("onload", initBrowserDetect);