Unable to get a multiselect list box to work

Hi all,

I am having a major problem with the listbox control.  I can't get multiselect to work.  I am pulling the data in the box from active directory and when I try to output the selected items, none of the selections are actually made.  Here is what I have so far:

 <html>

<body>

<forms runat="server">

<asp:ListBox ID="ListBox1" runat="server" Enabled="true" Width="175px" SelectionMode="Multiple" OnLoad="func"/>  
             <!---<ajaxToolkit:ListSearchExtender ID="ListSearchExtender1" runat="server"
                 TargetControlID="ListBox1"
             &nbs ...