[jQuery] Jquery cant manipulate inline TinyMCE. Why?

[jQuery] Jquery cant manipulate inline TinyMCE. Why?

Hi Folks
I am trying use inline TinyMCE with Jquery.
<a href="http://wiki.moxiecode.com/examples/tinymce/installation_example_05.php">http://wiki.moxiecode.com/examples/tinymce/installation_example_05.php</a>
I follow instructions to make Jquery work with Other Libraries and its working.
When I try manipulate elements into the inline doesnt work.
If I print the script into "inline page" (when inline page is load).
        I cant bring elements outside of inline (from my original DOM).
       
After inline load
        I can manipulate my DOM but cant manipulate "inline DOM"
       
Ho can you see one moment I can manipulate "inline DOM" but not "original DOM" and after I can manipulate "original DOM"  but not "inline DOM".
    <script type="text/javascript">
        jQuery.noConflict(); var $j = jQuery;
       
        $j(document).ready(function() {
            var myvar = $j(".MyClassFromOriginalDOM").text()
            $j('#MyIdOnInlineDOM').append($j("#OtherIdOnInlineDOM").text()); <== works
            $j('#MyIdOnInlineDOM').append(myvar); <== doesnt works when inline page load but after $j(".MyClassFromOriginalDOM").text() works
        });
    </script>
   
Why? Ideas? I am missing something
Regards<br clear="all">
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Mário Moura