```
</html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript"> 
$(document).ready(function(){
$("#popup").click(function(){
   // pop up a text area and I want to store value of textarea in a variable.
});
});
</script>
</head>

<body>
<form>
<textarea rows="2" cols="20" id="area" style="display:none"></textarea>
<input type="submit" id="popup" value="OK">
</body>
</html>

```

How to POPUP a text area on a button click?