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<html>
<head>
<script language="JavaScript">
<!--
function validateForm(f) {
if (f.value == "") {
alert("Please enter some text into the feedback field");
return false;
}
else
return true;
}
//-->
</script>
</head>
<body>
<pre>
<form name="myForm" method="post" action="http://www.java2java.com" onSubmit="validateForm(myForm.feedback)">
Full Name: <input type="text" size=30 name="persons_name"><br>
Feedback : <textarea name="feedback" rows=5 cols=50></textarea><p>
<input type="submit" value="Send Data">
</form>
</pre>
</body>
</html>
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