How to update text?

[notageek]

I want to update text, and have it displayed like text. I can do it as an updatable button, but well, it looks like a button, not like background. So not to pretty.
Thanks.

document.getElementById('title0').value = "Title";

<input type = "button" id=title0 />

[Charles]

document.getElementById ('foo').firstChild.data = 'bar'

<span id="foo">Foo</span>

Note, the containing element cannot start out empty for this method to work.

[notageek]

looks much better now. Thanks.