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<html>
<head>
<title>A Simple Page</title>
<script language="JavaScript">
<!--
function chkForm()
{
if (form1.inp1.value == "")
{
alert("Please fill in the text box");
form1.inp1.focus();
return false;
}
}
// -->
</script>
</head>
<body>
<form name="form1" method="POST" action="">
<P><input type="text" name="inp1">
<input type="submit" value="Submit" onClick="return chkForm()">
<input type="reset" value="Reset"></p>
</form>
</body>
</html>
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