var BrowserOS = {
	ff : /firefox/.test(navigator.userAgent.toLowerCase()),
	ie : /msie/.test(navigator.userAgent.toLowerCase()),
	chrome : /chrome/.test(navigator.userAgent.toLowerCase()),
	safari : /apple/.test(navigator.vendor == undefined ? false : navigator.vendor.toLowerCase()),
	opera : (window.opera == undefined ? false : window.opera),
	windows : /win/.test(navigator.platform.toLowerCase()),
	mac : /mac/.test(navigator.platform.toLowerCase()),
	linux : /linux/.test(navigator.platform.toLowerCase()),
	ipad : /ipad/.test(navigator.userAgent.toLowerCase()),
	iphone : /iphone/.test(navigator.userAgent.toLowerCase())
}