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index.htm
<html>
<head>
</head>
<body>
<iframe id="testFrame" frameborder="0" style="width:0px; height:0px;">
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<div id="resultCase">
</div>
<input type="button" value="showResult" onclick="AjaxGo();" />
</div>

<script type="text/javascript">
function AjaxGo()
{
document.getElementById("testFrame").src = "ajax.htm";
}
function ShowResult()
{
document.getElementById("resultCase").innerHTML = "hello world !";
}
</script>
</body>
</html>
ajax.htm
<html>
<head>
</head>
<body>
<script type="text/javascript">
parent.ShowResult();
</script>
</body>
</html>


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