How do I focus an HTML text field on an iPhone (causing the keyboard to come up)?

Question

I'm writing an iPhone web app, and I want to automatically focus a text field when the page is loaded, bringing up the keyboard. The usual Javascript:

input.focus(); 

doesn't seem to be working. Any ideas?

Answer 1

It will only show the keyboard if you fire focus from a click event, so put a button on the page with a onclick that does the focus and it will show the keyboard. Completely useless except for validation (on click of submit validation code focuses on invalid element)