(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/pt_BR/all.js#xfbml=1";
	fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));

function muda(objeto,caminho,posx,posy)
{
	objeto.style.background="url('"+caminho+"') " + posx + "px " + posy + "px";
}
function desmuda(objeto,caminho)
{
	objeto.style.background="url('"+caminho+"') 0px 0px";
}