openWYSIWYG-Editor disappears on postback.
It is working properly every time the page loads at the first time. However when we do a Postback the editor disappears with just the textarea.
The postback is happening due to a dropdown on the page.

    <asp:TextBox runat="server" ID="TBClosingInstructions" TextMode="MultiLine" Rows="8" Columns="40" TabIndex="2" Font-Name="Verdana"></asp:TextBox><script language="JavaScript">generate_wysiwyg('TBClosingInstructions');</script>

I would like the editor to remain even after postback. I have tried the following code 

    if (Page.IsPostBack)
                {
                    this.ClientScript.RegisterStartupScript(this.GetType(), "script", "<script language=\"JavaScript\">generate_wysiwyg('TBClosingInstructions');</script>", true);
                    Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "ClientScript", "<script language=\"JavaScript\">generate_wysiwyg('TBClosingInstructions');</script>", true);
                }


Tried both registerStartupScript and registerClientScriptBlock individually to bind the javascript functions in every postback. But this doesn't work. 

Is there any alternative? Please suggest.

openWYSIWYG-Editor disappears on postback.
===

It is working properly every time the page loads at the first time. However when we do a Postback the editor disappears with just the textarea.
The postback is happening due to a dropdown on the page.

    <asp:TextBox runat="server" ID="TBClosingInstructions" TextMode="MultiLine" Rows="8" Columns="40" TabIndex="2" Font-Name="Verdana"></asp:TextBox><script language="JavaScript">generate_wysiwyg('TBClosingInstructions');</script>

I would like the editor to remain even after postback. I have tried the following code 

    if (Page.IsPostBack)
                {
                    this.ClientScript.RegisterStartupScript(this.GetType(), "script", "<script language=\"JavaScript\">generate_wysiwyg('TBClosingInstructions');</script>", true);
                    Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "ClientScript", "<script language=\"JavaScript\">generate_wysiwyg('TBClosingInstructions');</script>", true);
                }


Tried both registerStartupScript and registerClientScriptBlock individually to bind the javascript functions in every postback. But this doesn't work. 

Is there any alternative? Please suggest.
