Youtube Video

gistfile1.js

var player;
function onYouTubeIframeAPIReady() {
    player = new YT.Player('player', {
        videoId: '8z5s2lKrA_w',
        events: {
            'onReady': onPlayerReady,
            'onStateChange': onPlayerStateChange
        }
    });
}
function onPlayerReady(event) {
    setTimeout(function(){
        $("#advModal").addClass('modal-block');
    }, 5000);
}
var done = false;
function onPlayerStateChange(event) {
    if (event.data == YT.PlayerState.PLAYING && !done) {
        //google analytics event code
        done = true;
    }
}
var tag = document.createElement('script');

tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);