When a user enters data into a form, it can get lost if he leaves the page or clicks a link (be it ajax or not). Here comes protectData, it asks the user before losing his data by loading another page or submitting an ajax request(optional).
It integrates with jquery.form (so ajaxSubmit and ajaxForm are saved too).
Get it at Google Code
Michael Grosser, the Blog 
You got “lose” and “losing” wrong in your plugin. Loose is something that isn’t tight.
thx, damn those typos…
at least its not in the permalink 🙂