# Javascript text field auto fill

**URL:** <https://forum.kirupa.com/t/javascript-text-field-auto-fill/208621>\
**Category:** web dev\
**Created:** [November 30, 2006, 3:04pm UTC](https://forum.kirupa.com/t/javascript-text-field-auto-fill/208621 "2006-11-30T15:04:58Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [November 30, 2006, 3:04pm UTC](https://forum.kirupa.com/t/javascript-text-field-auto-fill/208621/1 "2006-11-30T15:04:58Z")

</div>

Hello all

I have no idea about javascript at all but know that this can be done.

I have a form that when a user enters in a number i need that number to be placed into another text field but times by three. Like a auto fill. Any ideas or points would be great? I’ve done a search on google but there is so much coming back that its overwhelming me.

Cheers in advance.