look in
/plugins/content/ja_highslide.php
line 381 to 398
$html .= '<div class="highslide-caption" id="'.$id_link.'">
<a href="#" onclick="return hs.previous(this); return false;" class="control" style="float:left; display: block">
Previous
<br/>
<small style="font-weight: normal; text-transform: none">left arrow key</small>
</a>
<a href="#" onclick="return hs.next(this); return false;" class="control"
style="float:left; display: block; text-align: right; margin-left: 50px">
Next
<br/>
<small style="font-weight: normal; text-transform: none">right arrow key</small>
</a>
<a href="#" onclick="return hs.close(this); return false;" class="control">Close</a>
<a href="#" onclick="return false" class="highslide-move control">Move</a>
<div style="clear:both"> </div>
</div>';
$html .= '</div>';