I've found the answer. The following method is working
<div class="flexslider">
<ul class="slides">
<!-- slide1 -->
<li>
<img src="images/slider/2.jpg" alt="" usemap="#map2" />
<map name="map2">
<area shape="rect" coords="494,2,961,745" href="http://www.john-anthony.com/mens/jeans/" alt=""/>
<area shape="rect" coords="0,4,482,749" href="http://www.john-anthony.com/vivienne-westwood/blazer-jackets/burgundy/jacket-waistcoat-check/vw024-a13-bur/" alt=""/>
</map>
</li>
</ul>
</div>