FORM within FORM to show results in IFRAME

I have a FORM, which contains another FORM that is supposed to show its results within an IFRAME.
See my sample PHP files.  I cannot seem to get the SUBMIT for the inner form to do anything. I would like to execute another PHP script from that inner FORM and show its results in an IFRAME.  When the page is initially shown, the IFRAME does pick up the initial input from the fileControl.php script.  The inner form is a file upload form and uses POST.  What am I doing wrong?   According to all doc I read, I should just have to add a TARGET='iframename' to my inner form and the results will be displayed in the IFRAME.
<form name='editform' id='editform' action='editform.php' method='post'>
<input ....>
<input ....>
<input type='submit' value='Submit'>
<iframe src='fileControl.php?td=2008-09-02&tn=004G4&ts=SLO2&sc=CC' name='iframeControl' id='iframeControl' class='filecontrol'></iframe><br />
 
<form action='fileControl.php?td=2008-09-02&tn=004G4&ts=SLO2&sc=CC' method='post' enctype='multipart/form-data' name='uploadform' target='iframeControl' id="uploadform">
<input type='hidden' name='MAX_FILE_SIZE' value='2000000000000' /><input name='userfile' type='file' class='buttonBox' id='userfile' />   
<input name='upload' type='submit' class='buttonBox' id='upload' value='Upload' />
<input type='hidden' name='submitted' value='true' />
<input type='hidden' name='td' value='' />
<input type='hidden' name='tn' value='' /><input type='hidden' name='ts' value='' />
<input type='hidden' name='sc' value='' />
</form>
</form>

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mamusciaAsked:
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hieloCommented:
>>I cannot seem to get the SUBMIT for the inner form to do anything.
Correct. Nested forms are NOT allowed. The browser ignores the inner form tag. You must UN-nest them or use a single form.
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mamusciaAuthor Commented:
You were right.  When I include the "inner" FORM on the page within the IFRAME, it operates as it should.  So, I did some tinkering with my CSS to have the file control not scroll and the list of files to scroll within the IFRAME.  That way, the file control always shows at the top while the user can scroll through the list of files.  Thanks for confirming this.
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hieloCommented:
you are welcome.
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