gistfile1.js

var data, id, that, type, url;

that = this;
id = this.$el.attr('id');
url = this.$el.attr('action');
type = this.$el.attr('method');
data = this.$el.serialize();

$.ajax({
  url: url,
  type: type,
  data: data
}).success(function(res) {
  var updated_html;
  updated_html = $('<div />').html(res).find("#" + id).html();
  that.$el.html(updated_html);
}).error(function() {
  console.log('error');
});