Mouseover problemer

Bruger dette script til at lave img skift på et cirkulært billede når mouseover på href tags. Mit problem er, at scriptet betrager button 7 som værende mouseover på img\'et også - dvs den skifter billede når man kører musen over imget images/wheel.gif og skifter til rm_orange.gif - jeg ønsker kun img shifts når der er mouseover på href tags...nogen forslag?

<SCRIPT language=\"JavaScript\">
<!-- Begin
function movepic(img_name,img_src) {
document[img_name].src=img_src;
}
// End -->
</SCRIPT>


<a href=\"products/hds.htm\" onmouseover=\"movepic(\'button1\',\'images/hds_orange.gif\')\"
onmouseout=\"movepic(\'button1\',\'images/transp.gif\')\"><span style=\"position: absolute; left: 9; top: 160; z-index: 1\">
<img name=\"button1\" SRC=\"images/transp.gif\" ALT=\"Image\" border=\"0\" width=\"250\" height=\"250\"></span>Help Desk Services</a><br>
       
        <a href=\"products/cm.htm\" onmouseover=\"movepic(\'button3\',\'images/cm_orange.gif\')\"
onmouseout=\"movepic(\'button3\',\'images/transp.gif\')\"><span style=\"position: absolute; left: 9; top: 160; z-index: 1\">
<img name=\"button3\" SRC=\"images/transp.gif\" ALT=\"Image\" border=\"0\" width=\"250\" height=\"250\"></span>Change Management</a><br>

        <a href=\"products/cam.htm\" onmouseover=\"movepic(\'button2\',\'images/cam_orange.gif\')\"
onmouseout=\"movepic(\'button2\',\'images/transp.gif\')\"><span style=\"position: absolute; left: 9; top: 160; z-index: 1\">
<img name=\"button2\" SRC=\"images/transp.gif\" ALT=\"Image\" border=\"0\" width=\"250\" height=\"250\"></span>Configuration &amp; Asset Management</a><br>

        <a href=\"products/slm.htm\" onmouseover=\"movepic(\'button4\',\'images/slm_orange.gif\')\"
onmouseout=\"movepic(\'button4\',\'images/transp.gif\')\"><span style=\"position: absolute; left: 9; top: 160; z-index: 1\">
<img name=\"button4\" SRC=\"images/transp.gif\" ALT=\"Image\" border=\"0\" width=\"250\" height=\"250\"></span>Service Level Management</a><br>
       
        <a href=\"products/icm.htm\" onmouseover=\"movepic(\'button5\',\'images/icm_orange.gif\')\"
onmouseout=\"movepic(\'button5\',\'images/transp.gif\')\"><span style=\"position: absolute; left: 9; top: 160; z-index: 1\">
<img name=\"button5\" SRC=\"images/transp.gif\" ALT=\"Image\" border=\"0\" width=\"250\" height=\"250\"></span>Inventory Control Management</a><br>
       
        <a href=\"products/sms.htm\" onmouseover=\"movepic(\'button8\',\'images/sm_orange.gif\')\"
onmouseout=\"movepic(\'button8\',\'images/transp.gif\')\"><span style=\"position: absolute; left: 9; top: 160; z-index: 1\">
<img name=\"button8\" SRC=\"images/transp.gif\" ALT=\"Image\" border=\"0\" width=\"250\" height=\"250\"></span>Sales Management</a>
       
        <a href=\"products/pm.htm\" onmouseover=\"movepic(\'button6\',\'images/pm_orange.gif\')\"
onmouseout=\"movepic(\'button6\',\'images/transp.gif\')\"><span style=\"position: absolute; left: 9; top: 160; z-index: 1\">
<img name=\"button6\" SRC=\"images/transp.gif\" ALT=\"Image\" border=\"0\" width=\"250\" height=\"250\"></span><br>
        Purchase Management</a><br>
       
        <a href=\"products/rm.htm\" onmouseover=\"movepic(\'button7\',\'images/rm_orange.gif\')\"
onmouseout=\"movepic(\'button7\',\'images/transp.gif\')\"><span style=\"position: absolute; left: 9; top: 160; z-index: 1\">
<img name=\"button7\" SRC=\"images/transp.gif\" ALT=\"Image\" border=\"0\" width=\"250\" height=\"250\"></span>Resource Management</a><br>


<p align=\"center\"><span style=\"position: absolute; left: 9; top: 160; z-index: -1\">
<img border=\"0\" src=\"images/wheel.gif\" width=\"250\" height=\"250\"></span></p>