var coop = function() {
	return {}
}();

coop.browser = function() {
	var ua = navigator.userAgent.toLowerCase(); 
	
	var is_ie = (ua.indexOf('msie') != -1);
	
	var versionMinor = parseFloat(navigator.appVersion);

	if (is_ie && versionMinor >= 4) {
		versionMinor = parseFloat( ua.substring( ua.indexOf('msie ') + 5 ) );
	}
	var versionMajor = parseInt(versionMinor);
	 
	return {
		isSafari : (ua.indexOf('safari') != -1),
		isIE : is_ie,
		isIE6 : (is_ie && versionMajor == 6),
		isFirefox : (ua.indexOf('firefox/') != -1),
		isLinux : (ua.indexOf('linux') != -1)
	}
}();