function updateRating(val, id) {
	var req = new Ajax.Request('/blogs/update_rating/'+id+'/?rating='+val,{
		method: 'get',
		asynchronous: true,
		onComplete: function (r, h) {
			var _el = document.getElementById('blog_rating');
			_el.innerHTML = 'Thank you for voting.';
		}
	});
}