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<html>
<head>
<title>test</title>
<script type="text/javascript">
function do(){
  var message=document.getElementById('msg').value;
  document.getElementById('div1').innerText=message;
}
</script>
</head>
<body>
<form action="" method="post">
<input type="text" name="msg" id="msg" />
<input type="button" name="btn" id="btn" value="Done" onclick="do()" />
</form>
<div name="div1" id="div1">
</div>
</body>
</html>
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PHP code:
<html>
<head>
<title>test</title>
<script type="text/javascript">
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