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formvalidation10.html
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<html>
<head>
<title>Form Validation</title>
</head>
<body align="center">
<h2><u>FORM VALIDATION</u></h2>
<form name="form" action="a.html" method="POST" onsubmit="return validateForm()">
<p>Name : <input type="text" name="Name"> <br><br>
<p>Email: <input type="text" name="mail"> <br><br>
<p>Mob NO : <input type="tel" name="mob"> <br><br>
<p>Username : <input type="text" name="user"> <br><br>
<p>Password : <input type="password" name="passcode"> <br><br>
<p>Confirm Password : <input type="password" name="cpasscode"> <br><br>
<input type="submit" value="submit">
<input type="reset" value="reset">
</form>
<script>
function validateForm()
{
var nm = document.form.Name.value;
var email = document.form.mail.value;
var at=email.indexOf("@");
var dot=email.lastIndexOf(".");
var mob = document.form.mob.value;
var user = document.form.user.value;
var passcode = document.form.passcode.value;
var cpasscode = document.form.cpasscode.value;
if (nm == "")
{
alert("Enter Name !!");
document.form.Name.focus();
return false;
}
if (email == "")
{
alert("Enter Email ID");
document.form.mail.focus();
return false;
}
else if (at<1 || dot<at+2 || dot+2>=email.length)
{
alert( "Please enter a valid e-mail address.");
document.form.mail.focus();
return false;
}
if (mob == "")
{
alert("Enter Mobile number");
document.form.mob.focus();
return false;
}
else if (isNaN(mob))
{
alert("Enter valid Mobile number");
document.form.mob.focus();
return false;
}
else if (mob.length != 10)
{
alert("Enter Mobile number with 10 digit");
document.form.mob.focus();
return false;
}
if (user == "")
{
alert("Enter User Name !!");
document.form.user.focus();
return false;
}
if (passcode == "")
{
alert("Enter the Password !!");
document.form.passcode.focus();
return false;
}
else if(passcode.length < 6)
{
alert("Enter minimum 6 digit Password !!");
document.form.passcode.focus();
return false;
}
if (cpasscode == "")
{
alert("Confirm the Password !!");
document.form.cpasscode.focus();
return false;
}
else if (cpasscode!=passcode)
{
alert("Password must be same");
document.form.cpasscode.focus();
return false;
}
}
</script>
</body>
</html>