Drupal Ajax Example

drupal_ajax.js

(function($) {
    Drupal.behaviors.myModule = {
        'attach': function(context) {
            $('#edit-field', context).click(function(e) {
                $.ajax({
                    url: 'http://www.example.com',
                    success: function(data) {
                        console.log(data);
                    },
                    error: function(data) {
                        console.log(data);
                    }
                });
            });
        }
    }
})(jQuery);