validation.js

$(document).ready(function () {

    $("#signupForm").validate({
        rules: {
            name: {
                required: true,
                minlength: 4
            },
            email: {
                required: true,
                email: true
            },
            web: {
                required: true,
                minlength: 5
            },
        },
        messages: {
            name: {
                required: "Please enter a name",
                minlength: "Your name must consist of at least 4 characters"
            },
            email: "Please enter a valid email address",
            web: {
                required: "Please enter a valid web address",
                minlength: "Your web address must consist of at least 5 characters"
            },
        }
    });
});