hello,

i tried to follow this tutorial:

http://mattberseth.com/blog/2007/07/modalpopupextender_example_for.html

but got stuck when trying to set the style attributes: opacity, filter

it just won't work, getting an error that they don't exist.

my web page has a master page and i placed this code:

<style>
        .modalBackground {
            background-color:Gray;
            filter:alpha(opacity=70);
            opacity:0.7;
        }
    </style>

inside the head ContentPlaceHolder

help anyone?

thanks in advance

They may not exists, but they work.  That's what I've used and it works.