This should work...
Code:
<div id="head" onclick="location.href='test.com';">
<h1><a title="testTitle" href="test.com"></a></h1>
</div>
Also, to show that the header is clickable, add "cursor: pointer;" to your style.
Code:
#head {background:url(images/head.gif) no-repeat top center; margin:auto; width:893px;
height:72px; padding-top:9px; padding-right: 16px; text-align:center; cursor: pointer;}
HTH
