Pressing F2 key (Shift + Tab function) should go to PREVIOUS Field on the form - JavaScript


I have a form with some textboxes. I need to have a Javascript function that will do the following:

On pressing F2 function key should go to PREVIOUS textbox field (Shift + Tab function)  on the form.

Can you please provide me the Javascript code ?

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Gurvinder Pal SinghCommented:
this link will help you in detecting the f2 keypress

check this to see how to trigger a default event for a key programmatically

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milani_lucieAuthor Commented:
I did something like this. But does not solve my issue. Gives "JavaScript" error:
<script language="javascript">
function func(e)
var unicode = e.keyCode ? e.keyCode : e.charCode;
var evtobj=window.event ? event : e;
if (evtobj.shiftKey && unicode == 9)
<form name="form1">
<input type="text" name="text1" onkeyup="func(event);" />
<input type="text" name="text2" onkeyup="func(event);" />
<input type="text" name="text3" onkeyup="func(event);" />
milani_lucieAuthor Commented:
Can you please provide sample code ?
milani_lucieAuthor Commented:
Any comment / help on this ?
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