Here is my code for the page which resides in the root level of the project

 

<%@ Register src="CuteSoft_Client/CuteChat/EmbedMessenger.ascx" tagname="EmbedMessenger" tagprefix="uc1" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <a href='###' onClick='Chat_OpenMessengerDialog()' >Messenger</a>

    <uc1:EmbedMessenger ID="EmbedMessenger1" runat="server" />
    

</asp:Content>

 

The embedded messenger shows nothing.

 

When I click the link to open a Chat Windows is get the following JS error:

 Chat_OpenMessengerDialog is not defined

 

I don't get it, what am I doing wrong?