Ajax module does not work with multiple forms or embedded node forms because of invalid javacript selector

Sometimes the AJAX module has trouble binding the "enter" key to forms.

We discovered this has to do with line 44 in ajax.js. In the javscript, you're referencing the form's #edit-submit element. However, in drupal if there are multiple forms on a page #edit-submit will be appended with a number, so the form's submit button could also be #edit-submit-1, #edit-submit-12, etc.

I strongly suggest using a more flexible selector here, like this one:

this.ajax_activator = $('input.form-submit[id^=edit-submit]', this);

Thanks for a great module!