I am using spry menubar in dreamweaver cs4 but my problem is that
alongwith that i am using iframe and because of that my menubar is
hiding behing iframe and not working fine i m setting the higher z-
index for menubar but it is not working fine can any body tell me what
to do with that

<div id="header">
<ul id="MenuBar1" class="MenuBarHorizontal">
<li class="MenuBarItemSubmenu"><a href="#"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Organization Setup</
a>
<ul>
<li><a href="#" onclick="showform(this.value)"
style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Create/Manage
Organization</a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Role Management</
a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Preference/
Settings</a></li>
<li><a href="#" onclick="employee(this.value)"
style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >User/Employee
Management</a></li>
</ul>
</li>
<li class="MenuBarItemSubmenu"><a href="#">Projects</a>
<ul>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Create/Manage
Projects</a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" onclick="milestone
(this.value)">Schedule Milestones</a></li>
<li MenuBarItemSubmenu><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Version Management</
a>
<ul>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Release Notes</a></
li>
</ul>
</li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Change Order</a></
li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Code Review</a></
li>
</ul></li>

<li class="MenuBarItemSubmenu"><a href="#"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >QA</a>
<ul>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Test Cases</a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Internal Releases</
a></li>
</ul>
</li>
<li class="MenuBarItemSubmenu"><a href="#"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Client Section</a>
<ul>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Version History</
a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Feedback/Bug
Tracking</a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Change Orders</a></
li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Search/Query</a></
li>
</ul>
</li>
<li class="MenuBarItemSubmenu"><a href="#"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Reports</a>
<ul>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Master Lookups</a></
li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Projects</a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Bug Report</a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Calendar</a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Staff Status</a></
li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Reviews</a></li>
</ul>
</li>
<li class="MenuBarItemSubmenu"><a href="#"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Utilities</a>
<ul>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >Broadcast</a></li>
<li><a href="#" style="cursor:pointer"
onMouseOver="javascript:this.style.color='#FFCC33' ;"
onMouseOut="javascript:this.style.color='#FFFFFF'" >To do</a></li>
</ul>
</li>
</ul></div>
<div id="datacont" style="z-index:-10">
<table width="100%" cellpadding="0" cellspacing="0">
<tr><td >
<iframe width="730" height="480" id="myframe" frameborder="0"
src="#" allowtransparency="true" style="margin-top:90px; margin-left:
20px; background-color:#FFF; visibility:visible; z-index:-10"></
iframe></td>
<td><iframe width="250" height="480" frameborder="0"
allowtransparency="true" style="margin-top:90px; margin-left:-5px;
background-color:#FFF; visibility:visible; z-index:-10"
id="myframe1"></iframe></td>
</tr>
</table>
</div>
<script type="text/javascript">

var MenuBar1 = new Spry.Widget.MenuBar("MenuBar1",
{imgDown:"SpryAssets/SpryMenuBarDownHover.gif", imgRight:"SpryAssets/
SpryMenuBarRightHover.gif"});

</script>