function User(param){
	this.root_url = param.root_url;
}
User.prototype = {
	addToFavorites : function(user_id){
		var xhr = new XHRequest({method:'get',autoCancel:true,onComplete:this.onAddToFavorites.bind(this)});
		xhr.send(this.root_url+'services?method=woophy.user.addToFavorites', '&user_id='+encodeURIComponent(user_id));
		return false;
	},
	onAddToFavorites : function(text, xml){
		var err = xml.getElementsByTagName('err');
		if(err.length) alert (err[0].getAttribute('msg'))
		else alert('This member has been added to your favorites');
	}
};