title: $_POST and tinymce not working in FF/IE
body: <p>So i have a textarea who use tinymce, it's displaying fine, i pre-filled the textarea from my database, it's work, the problem is that on firefox and on internet explorer, when i modify the content of the textarea, and when i click on "submit" the <code>$_POST['mytextarea']</code> have the same value than before.</p>
  
  <p>If my textarea is pre-filled as "aaa" and that i modify by "aaabbb" the $_POST -> "aaa" but only in IE and FF. Why that ? </p>
  
  <p>On Chrome or Opera when i modify by "aaabbb" the $_POST give me "aaabbb" like it should be. </p>
  
  <p>EDIT:
  Here is my textarea : </p>
  
  <pre><code>&lt;textarea class="textpv" id="text" name="text" style="height: 300px;"&gt;
  &lt;?php if(isset($_GET['modele'])){$modele = $_GET['modele'];}else{$modele = '';}
  if(isset($_GET['soc'])){$soc = $_GET['soc'];}else{$soc = $_SESSION['SOC'];}
  echo htmlspecialchars(getcontentindatabase($soc, 'S', $modele)); ?&gt;
  &lt;/textarea&gt;&lt;br&gt;
  </code></pre>
  
  <p>who is called by this javascript when i change a option in a select</p>
  
  <pre><code>tinymce.init({selector:'textarea',
    menubar: false});
  
  $('#modele').change(function(){
    $('#divwhocontainthetextarea').load(getContent('divwhocontainthetextarea'));
  });
  
  function getContent(x){
  $.ajax({
  type: 'GET', 
  url:"textsign.php",
  data:"modele="+$('#optionselect').val()+"&amp;soc=&lt;?php echo $_SESSION['SOC'] ?&gt;",
  success  : function(data){  
   obj=document.getElementById(x);
   obj.innerHTML = data;
   tinymce.init({selector:'textarea',
   menubar: false});
  }       
  })
  }
  </code></pre>