1. <div id="a1">
2. <form>
3. // here text and submit input
4. </form>
5.  </div>
6. <div id="a2">
7. <form>
8. // here text and submit input
9. </form>
10. </div> 

Than I execute function after submit, to get proper resultats i need to distinguish from with div id it was submitted.

How to achieve it?