ho questo codice che devo modificare...
finora ho effettuato varie modifiche... cliccando submit il form invia i dati richiesti.
ero convinto bastasse mettere il "submit()" all'onload per risolvere... invece no... il form va correttamente alla pagina desiderata ma non passa le informazioni, ovvero il messaggio non viene salvato... ho bisogno d automatizzarlo, qualcuno ha idee?

codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head id="ctl00_Head1">
<html xmlns="http://www.w3.org/1999/xhtml" >


<script language="javascript">
 function fnSubmit() {
   document.aspnetForm.submit();
 return;
}
</script>

</head>
<body onLoad="fnSubmit()">
<iframe src="http://lamiapagina.aspx?id=1&" width="100" marginwidth="0" name="ciao" height="100" marginheight="0" scrolling="auto"></iframe>

<form name="aspnetForm" method="post" action="http://lamiapagina.aspx?id=1" target="_blank" id="aspnetForm">
<input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" />
<input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" />
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="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" />
	<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWDQLc8PL4AwLssvLQAwLssu7QAwLssurQAwLssubQAwKZjPviAgLOrcfKDgLG6eruDAKr9rgTAqOv3sgKAtneqdMGAp3phacLAoDiyWOGRvadGySnokbntwYY7Ulb79usqg==" />
	<span id="ctl00_ContentPlaceHolder1_lblRispondi">rispondi al messaggio</span>[/b]
    <span id="ctl00_ContentPlaceHolder1_rispostaOggetto">oggetto</span>
    <span id="ctl00_ContentPlaceHolder1_RequiredFieldValidator3" style="display:inline-block;color:Red;width:7px;visibility:hidden;">*</span>
    <input name="ctl00$ContentPlaceHolder1$txtOggetto" type="text" value="test" id="ctl00_ContentPlaceHolder1_txtOggetto" style="width:340px;" />
    <span id="ctl00_ContentPlaceHolder1_rispostaMessaggio">risposta</span>
    <span id="ctl00_ContentPlaceHolder1_RequiredFieldValidator4" style="color:Red;visibility:hidden;">*</span>
    <textarea name="ctl00$ContentPlaceHolder1$txtRisposta" rows="2" cols="20" id="ctl00_ContentPlaceHolder1_txtRisposta" style="height:137px;width:340px;">ciao test</textarea>
    <input type="submit" name="ctl00$ContentPlaceHolder1$btnRisposta" value="invia" id="ctl00_ContentPlaceHolder1_btnRisposta" />
</form>