<!DOCTYPE html>
<html lang="en">
<head>
<title>JavaScript Form Validation</title>
</head>
<body>
<script type="text/javascript">
function form_validate() {
var val=document.forms["check_form"]["ur_name"].value;
if (val==null || val=="") {
alert("Name must be required..!");
return false;
} else {
alert("Successful Validate...");
}
}
</script>
<form name="check_form" action="form_submit_message.php" method="post" onSubmit="return form_validate()">
Enter Your Full Name: <input type="text" name="ur_name" size="35"/>
<input type="submit" value="Submit"/>
</form>
</body>
</html>
