Hi, I was wondering how I could make a button / link enter some text into a textbox in a form.

Like on http://www.brookfresh.co.uk/ (at the top of the page).

Example:
[code]
<input type="text" id="my_textbox" /> <img src="my_image.ext" onClick="document.getElementById('my_textbox').val ue='my textbox value.';" />
[code]