Hi all i am having problems with my dropdown javascript menu for my navagation and its display its menu items behind my content for some reason here is my html for it
</head>
<script type="text/javascript" src="js/jquery-1.3.1.min.js"></script>
<script type="text/javascript">
function showmenu(elmnt)
{
document.getElementById(elmnt).style.visibility="visible"
}
function hidemenu(elmnt)
{
document.getElementById(elmnt).style.visibility="hidden"
}
</script>
<link href="style.css" rel="stylesheet" type="text/css">
<div id="container">
<div id="header">
<div id="hd"></div>
</div>
<div id="banner">
<ul class="slideshow">
<li class="show"><a href="http://www.google.com">
<img src="images/s1.gif" width="960" height="262" title="Slide 1" alt="slide 1"/></a></li>
<li><a href="http://www.yahoo.com">
<img src="images/s2.gif" width="960" height="262" title="Slide 2" alt="Slide 2"/></a></li>
<li><a href="http://www.msn.com">
<img src="images/s3.gif" width="960" height="262" title="Slide 3" alt="Slide 3"/></a></li>
</ul>
</div>
<div id="nav">
<div class="naventy"><a href="index.php" class="navlink">Home</a></div>
<div class="naventy" onmouseover="showmenu('work')" onmouseout="hidemenu('work')">
<a href="#" class="navlink">Portfolio</a>
<div class="menu" id="work">
<table>
<tr>
<th><a href="portfolio.php?ptype=1" class="navlink">CSS</a></th>
</tr>
<tr>
<th><a href="portfolio.php?ptype=2" class="navlink">Flash</a></th>
</tr>
<tr>
<th><a href="portfolio.php?ptype=3" class="navlink">Facebook</a></th>
</tr>
<tr>
<th><a href="portfolio.php?ptype=4" class="navlink">PHP</a></th>
</tr>
</table>
</div>
</div>
<div class="naventy"><a href="#" class="navlink">Resume</a></div>
<div class="naventy"><a href="contact.php" class="navlink">Contact</a></div>
</div>
<div id="content">
<div id="innercnt">
<div id="cntt">
</div>
</div>
</div>
<div id="news">
<div id="nw">
<H2>News</H2>
<ul id="style">
<li>July 22, 09 - Website Designed</li>
<li>October 07, 09 - Created Portfolio Page.</li>
<li>November 20, 09 - Working @ <a href="http://www.stickmenstudios.co.nz/">Stickmen Studios</a>.</li>
<li>December 11, 09 - Updated Website.</li>
</ul>
</div>
</div>
<div id="footer">
<div id="footerinfo">© 2009 BC Designs</div>
</div>
</div>
</div>
</body>
</html>
a live demo of what i mean can be seen here
Why is it being displayed behind the content itself?
How can i fix this issue?
Thanks,William