(function () {
    if ($('.lower-ie').length) {
        return;
    }
    document.getElementById('nav-index').className = 'active';
    var defaultEle = $('.navbar-default');
    defaultEle.addClass('navbar-bg');

    $('#page-index').scroll(function () {
        if ($('#page-index')[0].scrollTop > 600) {
            defaultEle.removeClass('navbar-bg');
        }
        else {
            defaultEle.addClass('navbar-bg');
        }
    });

    var charts = null;

    resize();
    $(window).resize(resize);

    function resize() {        // home video
        var video = document.getElementById('video-index');
        if (window.innerWidth / window.innerHeight < 16 / 9) {
            video.style.height = window.innerHeight + 'px';
            video.style.width = 'auto';
            video.style.marginLeft = Math.floor((window.innerWidth
                - window.innerHeight / 9 * 16) / 2) + 'px';
            video.style.marginTop = 0;
        }
        else {
            video.style.width = window.innerWidth + 'px';
            video.style.height = 'auto';
            video.style.marginTop = Math.floor((window.innerHeight
                - window.innerWidth / 16 * 9)) + 'px';
            video.style.marginLeft = 0;
        }
        if (charts) {
            for (var i = charts.length - 1; i >= 0; --i) {
                charts[i].resize();
            }
        }
    }
})();

function renderHomepage3TouchDemo(echarts) {

}

function playVideo(id) {
    var video = document.getElementById(id);
    video && video.play();

    var playBtn = document.getElementById(id + '-play');
    playBtn && (playBtn.style.display = 'none');

    var pauseBtn = document.getElementById(id + '-pause');
    pauseBtn && (pauseBtn.style.display = 'block');
}

function pauseVideo(id) {
    var video = document.getElementById(id);
    video && video.pause();

    var playBtn = document.getElementById(id + '-play');
    playBtn && (playBtn.style.display = 'block');

    var pauseBtn = document.getElementById(id + '-pause');
    pauseBtn && (pauseBtn.style.display = 'none');
}