<html>
<head>
<title> email</title>
<script>
function validate()
{
var x=form.emailid.value;
var atpos=x.indexOf("@");
var dotpos=x.indexOf(".");
if(!(atpos>0 && atpos<dotpos))
{
alert("not a valid email");
}
else
{
alert("valid");
}
}
</script>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<form name="form" onsubmit="validate()">
<table border="2">
<tr><td>email</td>
<td><input type="text" name="emailid">
</td><tr><br>
<head>
<title> email</title>
<script>
function validate()
{
var x=form.emailid.value;
var atpos=x.indexOf("@");
var dotpos=x.indexOf(".");
if(!(atpos>0 && atpos<dotpos))
{
alert("not a valid email");
}
else
{
alert("valid");
}
}
</script>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<form name="form" onsubmit="validate()">
<table border="2">
<tr><td>email</td>
<td><input type="text" name="emailid">
</td><tr><br>
<tr><td>password:</td><td>
<input type="password" name="password">
</td></tr><br>
</table>
<input type="submit" value="submit">
</form>
</body>
</html>
OUTPUT
</html>
OUTPUT
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