// check index.html link
setTimeout(function() {
	if(window.location.href.indexOf("file://") > -1) {
		function tag(i,j) {
			if (this == window) tag.apply(document, arguments);
			var items=this.getElementsByTagName(i);
			return !j ? items : tag.apply(items[0], [].splice.call(arguments, 1));
		}
		tag('header', 'nav', 'ul', 'li', 'a')[0].href='index.html';
	}
}, 500);

// facebook api
(function(d, s, id) {
	var js, fjs = d.getElementsByTagName(s)[0];
	if (d.getElementById(id))
		return;
	js = d.createElement(s);
	js.id = id;
	js.src = "//connect.facebook.net/pl_PL/all.js#xfbml=1";
	fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));