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JAB_Creations - 6:49 pm on Apr 9, 2011 (gmt 0)
When you call toggle(button) you'll have to send a specific object already created (e.g. )document.getElementById('element_id_here'). Therefore try alerting (e.g. alert(button); and alert(typeof button)) in the first line of that function.
Also Opera is excellent for debugging JavaScript and unfortunately for some reason Firefox hides a few JavaScript errors that don't make it past Opera for some reason.
Good job for opting to use the DOM. :)
- John