(function () {
	"use strict";
	version.extensions['youtubeAudioMacros'] = {
		major: 2,
		minor: 0,
		revision: 0
	};
	var ytplayers = {},
		videocount = 0,
		s = document.createElement("script");
	s.src = "http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject_src.js";
	s.onreadystatechange = s.onload = function () {
		var re = new RegExp('(?:playbgm|loopbgm) ([^"&?/ ]{11})', "gi"),
		    div = document.getElementById("storeArea").firstChild,
		    done = [],
		    d;
		function newplayer(hash) {
			var id = "YouTube-" + hash;
			  insertElement(document.body, "div", id);
			swfobject.embedSWF("http://www.youtube.com/apiplayer?enablejsapi=1&playerapiid=" + id, id, "0", "0", "8",
				null, {}, {
					allowScriptAccess: "always",
					wmode: "transparent",
					modestbranding: "1",
					version: "3"
				}, {
					id: "ytplayer-" + hash,
				});
		};
		while(div) {
			do {
				d = re.exec(div.innerHTML);
				if(d && done.indexOf(d[1]) == -1) {
					newplayer(d[1]);
					done.push(d[1]);
				}
			} while (d);
			div = div.nextSibling;
		};
	};
	document.head.appendChild(s);
	window.onYTAudioError = function (e) {
		alert("There is a problem with the YouTube background music (" + e + ")" +
			(e == 2 ? ": The video ID (" + hash + ") is probably invalid." :
				e == 100 ? ": The requested video (" + hash + ") was not found." :
				e == 101 || e == 150 ? ": Embedding has been disabled for the video (" + hash + ")." : ""));
	};
	window.onYouTubePlayerReady = function (e) {
		var hash = e.slice(8),
			yt = (ytplayers[hash] = document.getElementById("ytplayer-" + hash));
		yt.style.visiblity="hidden";
		yt.addEventListener("onError", "onYTAudioError");
		yt.mute();
		yt.loadVideoById(hash, 0);
		yt.LOAD = true;
		videocount += 1;
		window["onYTAudioStateChange_" + videocount] = function (newState) {
			if(newState == 1 && yt.LOAD) {
				yt.pauseVideo();
				yt.unMute();
				yt.LOAD = false;
			}
			if(newState == 0 && yt.LOOP) {
				yt.playVideo();
			}
		};
		yt.addEventListener("onStateChange", "onYTAudioStateChange_" + videocount);

	};
	["playbgm","loopbgm","stopbgm","pausebgm","unloopbgm"].forEach(function(e) {
		macros[e] = {
		handler: function (e, t, n, r) {
			var yt;
			if(n[0]) {
				yt = ytplayers[n[0]];
				if(yt) {
					switch(t) {
					  case "playbgm":
					  case "loopbgm":
						yt.LOOP = (t == "loopbgm");
						if (n[1]) yt.seekTo(n[1]);
						yt.playVideo();
						break;
					  case "stopbgm":
						yt.stopVideo();
						break;
					  case "pausebgm":
						yt.stopVideo();
						break;
					  case "unloopbgm":
						yt.LOOP = false;
						break;
					}
				}
			}
		}
	}
	});
}());