Urgent: Css-opacity

I’m using css-opacity for put a div over another div that contains a form, but only the select objects aren’t under the div that contais the opacity style. Do you have any idea?

<DIV id=”Div_Transparent” class=”DivTransp” style=”z-index: 100; background-color: #0044AA; filter: Alpha(Opacity=30)”></DIV>

I already tried to change the z-index and z-order, but nothing works.

You can see the problem:

[url]http://www.desenvolvedores.com/probdiv/index.htm[/url]

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