<html>

<head> 


<script language="javascript" type="text/javascript">

re=/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/

function submitIt(myform){

if(re.test(myform.email.value)) {
return true
}

alert("Invalid Email Address")
myform.email.focus()
myform.email.select()
return false

}
</script>

</head>

<body bgcolor="white">
<h2 Align="center"> email validation </h2>
<form onSubmit="return submitIt(this)" action=" " >
<table>

<tr>
     <td align="right" valign="top"> Email Address: </td>
  <td>
     <input name="email" type="text" size="50" > <p>

<input type="submit" value="submit"> <input type="reset"></td>
</tr>
</table>
</form>
</body>

</html>