Is there any way to have the background color change in a cell only when the mouse is over the link?

This is what I have so far:

<td class=topnav2 onClick="location.href='AboutAD/overview.htm'" onMouseOut="'#9966FF'"onMouseOver="'#660099'" bgcolor="#9966FF" width="107" height="45"valign="middle">
<a class="topnav2" href="AboutAD/overview.htm">About Alzheimer's</a>


Currently you rollover the cell it changes color, I just want this effect when you roll over the text.

thanks in advance