I have a link and an image next to each other. I want to make the link hovered when I do mouseover on image. How do I do that ?

Here is the code I have now.
<a href="javascript:undefined" id="imageLinkId">GMNA</a>&nbsp;

<script language="javascript">
if( ... ) {
document.write('<img src="/graphics/channel/plus.png" id="div18Img" alt="Maximize this section" onMouseOver= >'); }
else {
document.write('<img src="/graphics/channel/minus.png" id="div18Img" alt="Minimize this section" onMouseOver= >'); }