Can't get Javascript to change label text

I have tried everything. I simply need some text in a label to change when a user highlights a link. Here is a list of different statements I tried but none of them worked. Please help. Thanks.


hypDataDriller.Attributes.Add("OnMouseOver", getElementById('lbl').InnerHTML='d')

hypDataDriller.Attributes.Add("OnMouseOver", getElementById('lbl').InnerText='d')

hypDataDriller.Attributes.Add("OnMouseOver", getElementById('lbl').Text='d')

hypDataDriller.Attributes.Add("OnMouseOver", getElementById('lbl').Value='d')

You can't expect those to work because getElementById() would be interpreted as a codebehind function, not a javascript STRING.

Code:

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hypDataDriller.Attributes.Add("OnMouseOver", "getElementById('lbl').InnerHTML='d';")

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