mikehorn.js

/* mikehorn.js */

// Hide Navbar on scroll down
var didScroll;
var lastScrollTop = 0;
var delta = 5;
var navbarHeight = $('nav').outerHeight();

$(window).scroll(function(event){
    didScroll = true;
});

setInterval(function() {
    if (didScroll) {
        hasScrolled();
        didScroll = false;
    }
}, 250);

function hasScrolled() {
    var st = $(this).scrollTop();
    
    // Make sure they scroll more than delta
    if(Math.abs(lastScrollTop - st) <= delta)
        return;
    
    // If they scrolled down and are past the navbar, add class .nav-up.
    // This is necessary so you never see what is "behind" the navbar.
    if (st > lastScrollTop && st > navbarHeight){
        // Scroll Down
        $('nav').removeClass('nav-down').addClass('nav-up');
    } else {
        // Scroll Up
        if(st + $(window).height() < $(document).height()) {
            $('nav').removeClass('nav-up').addClass('nav-down');
        }
    }
    
    lastScrollTop = st;
}

function validateForm() {
    var name =  document.getElementById('name').value;
    if (name == "") {
        document.getElementById('status').innerHTML = "Name cannot be empty";
        return false;
    }
    var email =  document.getElementById('email').value;
    if (email == "") {
        document.getElementById('status').innerHTML = "Email cannot be empty";
        return false;
    } else {
        var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
        if(!re.test(email)){
            document.getElementById('status').innerHTML = "Email format invalid";
            return false;
        }
    }
    var subject =  document.getElementById('subject').value;
    if (subject == "") {
        document.getElementById('status').innerHTML = "Subject cannot be empty";
        return false;
    }
    var message =  document.getElementById('message').value;
    if (message == "") {
        document.getElementById('status').innerHTML = "Message cannot be empty";
        return false;
    }
    document.getElementById('status').innerHTML = "Sending...";
    document.getElementById('contact-form').submit();
    
    }