function updateHTML(elmId, value) {
	document.getElementById(elmId).innerHTML = value;
}

function setytplayerState(newState) {
	updateHTML("playerstate", newState);
}

function onYouTubePlayerReady(playerId) {
	ytplayer = document.getElementById("myytplayer");
	setInterval(updateytplayerInfo, 250);
	updateytplayerInfo();
	ytplayer.addEventListener("onStateChange", "onytplayerStateChange");
	ytplayer.addEventListener("onError", "onPlayerError");
}

function onPlayerError(errorCode) {
	alert("An error occured: " + errorCode);
}

function onytplayerStateChange(newState) {
	setytplayerState(newState);
}

function updateytplayerInfo() {
	updateHTML("bytesloaded", getBytesLoaded());
	updateHTML("bytestotal", getBytesTotal());
	updateHTML("videoduration", getDuration());
	updateHTML("videotime", getCurrentTime());
	updateHTML("startbytes", getStartBytes());
	updateHTML("volume", getVolume());
}

// functions for the api calls
function loadNewVideo(id, startSeconds) {
	if (ytplayer) {
	ytplayer.loadVideoById(id, parseInt(startSeconds));
	}
}

function cueNewVideo(id, startSeconds) {
	if (ytplayer) {
	ytplayer.cueVideoById(id, startSeconds);
	}
}

function play() {
	if (ytplayer) {
	ytplayer.playVideo();
	}
}

function pause() {
	if (ytplayer) {
	ytplayer.pauseVideo();
	}
}

function stop() {
	if (ytplayer) {
	ytplayer.stopVideo();
	}
}

function getPlayerState() {
	if (ytplayer) {
	return ytplayer.getPlayerState();
	}
}

function seekTo(seconds) {
	if (ytplayer) {
	ytplayer.seekTo(seconds, true);
	}
}

function getBytesLoaded() {
	if (ytplayer) {
	return ytplayer.getVideoBytesLoaded();
	}
}

function getBytesTotal() {
	if (ytplayer) {
	return ytplayer.getVideoBytesTotal();
	}
}

function getCurrentTime() {
	if (ytplayer) {
	return ytplayer.getCurrentTime();
	}
}

function getDuration() {
	if (ytplayer) {
	return ytplayer.getDuration();
	}
}

function getStartBytes() {
	if (ytplayer) {
	return ytplayer.getVideoStartBytes();
	}
}

function mute() {
	if (ytplayer) {
	ytplayer.mute();
	}
}

function unMute() {
	if (ytplayer) {
	ytplayer.unMute();
	}
}

function getEmbedCode() {
	alert(ytplayer.getVideoEmbedCode());
}

function getVideoUrl() {
	alert(ytplayer.getVideoUrl());
}

function setVolume(newVolume) {
	if (ytplayer) {
	ytplayer.setVolume(newVolume);
	}
}

function getVolume() {
	if (ytplayer) {
	return ytplayer.getVolume();
	}
}

function clearVideo() {
	if (ytplayer) {
	ytplayer.clearVideo();
	}
}