How do you use Javascript to populate a text field with data based on a select box?
<p>I know a good amount of PHP, but know very little of Javascript.</p>

<p>Basically, what I want is:</p>

<p>If a user selects item x from an HTML form select box, then the descriptive text for item x will auto populate an HTML form input text box below it.</p>

<p>Does anyone have a working sample that I can use or edit to be able to do what I need?</p>
