you mean like this ? :)
<img src="menutop.gif" alt="" width="320" height="43" border="0"
usemap="#Map" style="padding-bottom:1px;">
<map name="Map">
<area shape="rect" coords="2,4,64,37"
href=
"javascript:history.go(-1)" target="_self" alt="Back">
<area shape="rect" coords="260,4,316,38" href="search.html"
alt="Search">
</map>
works fine in our iphone app