checkInView()

function checkInView() {
    // Allows animations to be triggered once user scrolls element into viewport
    // Manage animation patterns w/CSS
    // This function just looks for any classes assigned to $animatedClass and when in viewport will add 'animated'
    var $animatedClass = $('.animate-scroll');
    var $window = $(window);
    $window.on('scroll', checkElements);
    $window.trigger('scroll');

    function checkElements() {
        var window_height = $window.height();
        var winTopPos = $window.scrollTop();
        var winBotPos = (winTopPos + window_height);

        $.each($animatedClass, function() {
            var $element = $(this);
            var height = $element.outerHeight();
            var elemTopPos = $element.offset().top;
            var elemBotPos = (elemTopPos + height);

            //Check if visible
            if ((elemBotPos >= winTopPos) && (elemTopPos <= winBotPos)) {
                $element.addClass('animated');
            }
        });
    }
}