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<HTML>
<HEAD>
<TITLE></TITLE>
<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript">
function validateEmail(input) {
var emailPattern = /^\w+@\w+(\.\w{3})$/
if (emailPattern.test(input)) {
document.write("valid")
}
else {
document.write("NOT valid")
}
}
</SCRIPT>
</HEAD>
<BODY>
<FORM>
Please enter an e-mail address and click somewhere else on the page:
<INPUT TYPE="text" SIZE="25" onBlur="validateEmail(this.value);">
</FORM>
</BODY>
</HTML>
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