If I undestood the task right, you can create code in such way. You form will be like this:
<table><tr> <form action="http://jquery.com" method="post" id="myForm"> <td> <input value="submit" type="submit" onclick="conversion(1000, this); " /> </td> </form> </tr> </table> Convertion(1000, this) will return: true, if it`s neccesary to submit form. false, in other case. For this question: 'Is there another way to get to the form tag by traversing elements in reverse order? '.. But "parents('form')" returns reverse order...