The "onclick" is being used as a parameter in an HTML tag (TD), not as an object being referrenced in JS.And I had also tried playing around with the cases of the letters and nothing changed in FF.Funny thing is I've also got onmouseover and out events running, which work fine, but the browser doesn't seem to be accepting any of the onclick events for any of the tags.I suppose the code itself would be best to look at... I'll put it up later today for examination.