[RESOLVED] please help

[Tommy.net]

<script language="javascript" type="text/javascript">
    
    function open()
    {
    window.open("Default2.aspx","BlueWindow","width=400,height=400");
    }
    
    </script>

<asp:Button ID="Button3" runat="server" Text="Open" OnClientClick="open()" />

this did not opened the window......