I have designed the following code (javascript) can you guys help me in designing the same code using regular expressions.....


<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Name</title>
<script type="text/javascript">
function validate()
{
var at=document.getElementById("email").value.indexOf("@")
var age=document.getElementById("age").value
var fname=document.getElementById("fname").value
submitOK="true"

if(fname=="")
{
alert("you forgot to type your name")
submitOK="false"
}
if(isNaN(age)||age<1||age>100)
{
alert("the age must be a number between 1 and 100")
submitOK="false"
}
if(at==-1)
{
alert("Not a valid e-mail!")
submitOK="false"
}
if(submitOK=="false")
{
return false
}
}
</script>
</head>

<body>
<form action="file:///Z:/aaaaaa.html" onsubmit="return validate()">
<p align="left">Name:&nbsp; <input type="text" id="fname"><br>
Age:&nbsp;&nbsp;&nbsp;&nbsp; <input type="text" id="age"><br>
E-mail: <input type="text" id="email"><br>
<input type="submit" value="SUBMIT">
<input type="reset" value="RESET">
</p>
</form>
</body>

</html>