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<html>
<head>
<title></title>
<script type="text/javascript">
var testMode = false;
var alertSave = alert;
var confirmSave = confirm;
 
window.alert = function(message) {
  if(! testMode) {
  	alertSave(message)
  } else {
  	writeMyConsole("alert", message);
  }
}
 
window.confirm = function(message) {
  if(! testMode) {
  	return confirmSave(message);
  } else {
  	writeMyConsole("confirm", message + "=>" + true);
  	return true;
  }
}
 
function writeMyConsole(action, message) {
	document.getElementById("myConsole").value += "\n[" + action + "]:" + message;
}
 
</script>
</head>
<body>
<textarea id="myConsole" cols="50" rows="20"></textarea>
<a href="#" onclick="alert('ok')">alert ok</a>
<a href="#" onclick="confirm('ok ?')">confirm  ok ?</a>
<a href="#" onclick="testMode = !testMode;">change mode</a>
</body>
</html> | 
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