Use this code to cause a row’s background color to change with a mouse over:

<tr style=”background-color: #F4F9FF;” onmouseover=”this.style.backgroundColor=’#C1D0E4′;” onmouseout=”this.style.backgroundColor=’#F4F9FF’;”>

This works in IE and FireFox.

Here is an example: http://www.thehousedesigners.com/adkit/