Background color does not change in Firefox with onmouseover

I have a datalist with a main div and sub div's. In IE the mouseover works great. The backcolor changes and the cursor changes in a hand. In Firefox the cursor changes as well but the background remains the same. I have browsed the net and could not find a solution. I've tried with css and :hover. Nothing works. I have a table on another page and the same code works just fine in IE and Firefox. The problem is I can't work with a table for this page. I hope some expert can make sense of this inconsistency. Thanks!
<div id="dataListMain" style="cursor:hand; cursor:pointer" onmouseover="'#F4F5F6'" onmouseout="''">

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The code works fine in my firefox. Check if other styles are having conflict (dataListMain?).
And the color change is not very obvious IMO. May be you try change to another color and test again.

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PdeLormeAuthor Commented:
Afterall it seems not to be the color but another div that was the problem. Thanks for your advice.
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