// JavaScript Document

function QueueLoader ()

{

	var _queueList = [];

	var _callback;

	var _onFinish;

	var _index = 0;

	

	/* Public Methods

	***************************************************/

	this.addItem = function (file, id, container, rel)

	{

		var obj = {

			file: file,

			id: id, 

			container: container,

			rel: rel

		}

		_queueList.push(obj);

	}

	

	this.start = function (callback, onFinish)

	{

		// Params

		_callback = callback;

		_onFinish = onFinish == null ? false : onFinish;

		

		// validate length

		if(_queueList.length == 0) return false;

		

		// init

		loadImage ();

	}

	

	/* Private Methods

	***************************************************/

	function loadImage ()

	{

		$(_queueList[_index].container).append("<img rel='" + _queueList[_index].rel + "' id='" + _queueList[_index].id + "' src='" + _queueList[_index].file + "' />");

		$("#" + _queueList[_index].id).css("display", "none");

		$("#" + _queueList[_index].id).load(nextLoad);

	}

	

	function nextLoad ()

	{

		if(_index < _queueList.length - 1) {

			if(!_onFinish && _callback != undefined) _callback(_queueList[_index], false);

			_index++;

			loadImage ();

		} else {

			if(_callback == undefined) return;

			_onFinish ? _callback(_queueList) : _callback(_queueList[_index], true);

		}

	}

}