JQuery menu firefox z-index issue

[buntyindia]

I am using Horizontal "jQuery Multi Level CSS Menu #2" located at "http://www.dynamicdrive.com/style/cs...el_css_menu_2/
"
There is box created using div in my code behind which the menu items were hiding. So I set the z-index of 'Whitepage' div to -1.

1)Now it is working fine in IE but in Firefox the whole 'Whitepage' div goes disappears.
2)One more thing: how can we left some space in left side of menu or can say how to center the menu items?

Please help.

	<div id="Wrapper">
    <div class="Whitepage" style="top:140px;width:auto;height:auto;z-index:-1">
    <div class="ShadowContainer" style="width:auto;height:auto">
    <div class="Shadow" style="width:auto;height:auto">
    <div class="Container" style="width:auto;height:auto">
    <h1>Create a Record</h1>
    <br/>
    <form name="createForm" method="POST">
    <input type="hidden" name="action" value="save"/>
    <table class="cstbl">
<tr><td>User name</td><td><input class="txt" name="userName"/></td></tr>
<tr><td>contents</td><td><select name="contents" onchange="()">....</select></tr></td>
<tr><td>type</td><td><select name="Type" disabled="disabled">...</select></td></tr>
<tr><td><a class="button" href="#" onclick="doSave();return false;"><img src="commit_white.jpg"></img></a></td><td><a class="button" href="#" onclick="doCancel();return false"><img src="reset_white.jpg"></img></a></td></tr>
</table>
    </form>
    </div>
    </div>
    </div>
    </div>
    </div>

[robin9000]

To be able to center the menu is something that could be done with CSS 3 but I would not recommend it as I tried that with the exact same menu as your using right now and found that when I did so it was not possible for people on firefox 3 to view it. There seems to be a lot more Firefox 3 users then I realized. Also it did not display well in IE 7. The only way I could recommend to center it is by using the old center tags.
<center>menu goes here</center>

[buntyindia]

One more problem that i am facing is in IE6, menu is going behind SELECT element.

what to do ?