// create unique namespace
if(typeof publisher == "undefined" || !publisher)	publisher = {};

var userAgent = navigator.userAgent.toLowerCase();
publisher.platform = {
	win:/win/.test(userAgent),
	mac:/mac/.test(userAgent)
};
publisher.browser = {
	version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
	safari: /webkit/.test(userAgent),
	opera: /opera/.test(userAgent),
	msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
	mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent),
	chrome: /chrome/.test(userAgent)
};