How to post data to create a new Devise session through ajax

login.js

function login() {
  var email = $('#user_email').val();
  var password = $('#user_password').val();
  var data = {remote: true, commit: "Sign in", utf8: "✓",
              user: {remember_me: 1, password: password, email: email}};
  $.post('/users/sign_in.json', data, function(resp) {
    if(resp.success) {
      // process success case
    } else {
      // let the user know they failed authentication
    }
  });
  return false;
}

Hi
Thanks for this example in how to use devise sessions with json, but i have a doubt...
Here did i put my _login.html.haml (how can I call this view ?)

Thanks