Navigate between text fields using javascript and two arrows icons
<p>I'm looking to make 2 arrows (Up &amp; Down buttons).  Both are .gif. the thing is:</p>

<p>I have form with 4 text fields. How do I make it so that when I click the Down button.gif I navigate to the next text field then if press again I navigate to another field, and if I press Up button.gif to navigate up to the previous field like with a keyboard using arrows but instead using 2 images up &amp; down.</p>

<p>How have to be the javascript function for this?</p>
