AJAX Form Submission (via click): Magic JavaScript

Usage

Add data-mjf="ajax_submit|return_false" data-mjf_ajax_update_id="ELEMENT_ID" id="FORM_ID" to your <form> tag.
Add data-mjf="ajax_submit_link" data-mjf_asl_form_id="FORM_ID" id="ELEMENT_ID" to your clickable tag.
Add <script type="text/javascript">$m.wand.ajax_submit_link = true;</script> inside your <body> tag.

Example

Notes

The action and method attributes for your form are still required and will be used when making the AJAX call.
You'll probably want to use Form Validation as well.
- Hint: data-mjf="form_required|ajax_submit|return_false"
If you want to submit your clickable tag as a form field, add data-mjf_asl_name_value="NAME=VALUE" to it.
If you want your <form> to use a different action, add data-mjf_asl_action="/PATH/TO/NEW_ACTION" to your clickable tag.