ICONS for preview page

Hi,
I would like to use an ICON istead of the word Deactivations for the auto preview function on the list page.

I have tried a few variations and the ICON will appear but is not picking up the hyperlink value.
Thanks in Advance.

Michael
<td align="center" valign=middle class=borderbody width="5">
<a class="tablelinks" {if $useAJAX} onmouseover="RollDetailsLink.showPopup(this,'Deactivations_detailspreview.asp'+this.href.substr(this.href.indexOf('?')));" onmouseout="RollDetailsLink.hidePopup();" {/if} href="Deactivations_list.asp?{$row.1Deactivations_masterkeys}" id="master_Deactivations{$row.1recno}">

Deactivations</a>
</td>