Getting data from a child window [duplicate]

This question already has answers here: Closed 10 years ago.

Possible Duplicate:

getting data from child window

I am working on a project and have encountered a problem. Please view the following code.

<iframe name="stus" id="stus" style="display:none;"></iframe><div id="posting"></div>

<form name="water" id="water" method="post"  autocomplete="off" action="components/com_pocketsea/assets/new/water.php" target="stus">
<input text="text" id="newwatermark" name="newwatermark"><input type="submit"></form>

The code for water.php is

开发者_如何学编程

<?php $tt = $_POST['newwatermark'];  ?>
    <script type="text/javascript" src="../../js2/jquery.min.js" ></script>  
    <script>        $(document).ready(function(){ $("#posting", window.parent.document).html("<?php echo $tt; ?>").fadeIn('slow'); }); </script>

The script is not working. Water.php is not being loaded in parent. This works well in custom but not in joomla. plz help.

---

you can use opener method to access parent window element...

 $('#myform').submit(function(){     
       opener.document.getElementById('parentWindowElem').innerHTML = document.getElementById ('childWindowElem').value;    
});