/*
 *	IZKflashDalai
 *
 *		@author		Isaac Rivera
 *		@version	1.5
 *		@date		11/01/2005
 *
 *		A DalaiLlama wrapper/decorator singleton class adds support for a <DIV> 
 *		embedded player to "float" above other browser content such as a flash 
 *		application. Provides a unified and consistent interface to access  
 *		DalaiLlama.
 *	
 *	CONSTRUCTOR
 *
 *		Returns a IZKflashDalai instance wrapping the DalaiLlama  object passed as 
 *		argument. This IZKflashDalai object should be a singleton that masks the  
 *		IZKflashDalai Class constructor.
 *
 *		@param	dalaiObject: an instance of DalaiLlama
 */
IZKflashDalai = function(dalaiObject) {
	//	save a reference to the DalaiLlama object:
	this.player = dalaiObject;
	// 
	this.player.DLServer = "us.video.aol.com";
	//	init the instance:
	this.player.Init("video");
	//	save a reference to the <DIV> which 
	//	contains the DalaiLlama object:
	this.layer = window.document.getElementById("IZKflashDalaiDiv");
	//	save a reference to the syle of the layer:
	this.style = this.layer.style;
	//	save a refrence to the iframe of the player:
	this.iframe = window.document.getElementById( "_DL_IFRAME_" );
	//	curtain properties:
	if(!(this.curtain = window.document.getElementById("IZKcurtainDiv"))) this.curtain = false;
	this.curtainFrame = (this.curtain) ? window.document.getElementById("ac_frame") : null;
	this.curtainFrameStyle = (this.curtain) ? this.curtainFrame.style : null;
	
	//	Client information:
	var ua = navigator.userAgent.toLowerCase();
	this.client = ua.indexOf("safari") > -1 ? "safari" : ua.indexOf("firefox") > -1 ? "firefox" 
		: ua.indexOf("aol") > -1 ? "aol" : ua.indexOf("netscape") > -1 ? "netscape" : ua.indexOf("msie") > -1 ? "msie" : "other";
	this.platform = ua.indexOf("windows") > -1 ? "pc" : ua.indexOf("mac") > -1 ? "mac" : "other";

	//	AOL hat Adjustment:
	var hat = window.document.getElementById("hat");
	this.hatOffset = 0;
	if(hat) {
		var fudgeNumber = 8;
		this.hatOffset = hat.offsetTop + hat.offsetHeight + fudgeNumber;
	}
	this.moveBy(0, this.hatOffset);
}

/*
 *	METHOD	setPosition
 *
 *		Sets the top-left coordinates of the <DIV> containing DalaiLlama
 *
 *		@param	top: A Number indicating the amount to move the player vertically
 *		@param	left: A Number indicating the amount to move the player horizontally.
 */
IZKflashDalai.prototype.moveBy = function(left, top) {
	var newLayerTop = 0, newLayerLeft = 0;
	if(this.layer.offsetTop) {
		newLayerTop = "" + (this.layer.offsetTop + top) + "px";
	} else if(this.style.top.length) {
		newLayerTop = "" + (parseInt(this.style.top.substring(0, this.style.top.length - 2)) + top) + "px"
	} else {
		newLayerTop = "" + top + "px"
	}
	if(this.layer.offsetLeft) {
		newLayerLeft = "" + (this.layer.offsetLeft + top) + "px";
	} else if(this.style.left.length) {
		newLayerLeft = "" + (parseInt(this.style.left.substring(0, this.style.left.length - 2)) + left) + "px"
	} else {
		newLayerLeft = "" + left + "px"
	}
	this.setPosition(newLayerLeft, newLayerTop);
}


/*
 *	METHOD	setRect
 *
 *		Sets the area and top-left coordinates of  the <DIV> containing DalaiLlama
 *
 *		@param	top:	CSS string indicating distance in pixels from the top of the  
 *			document
 *		@param	left: CSS string indicating distance in pixels from the left of the 
 *			document
 *		@param	width: CSS string indicating <DIV> container's width in pixels
 *		@param	height: CSS string indicating <DIV> container's height in pixels
 */
IZKflashDalai.prototype.setRect = function(left, top, width, height) {
	this.setPosition(left, top);
	this.setSize(width, height);
}

/*
 *	METHOD	setPosition
 *
 *		Sets the top-left coordinates of the <DIV> containing DalaiLlama
 *
 *		@param	top: CSS string indicating distance in pixels from the top of the  
 *			document
 *		@param	left: CSS string indicating distance in pixels from the left of the
 *			document
 */
IZKflashDalai.prototype.setPosition = function(left, top) {
	this.setLeft(left);
	this.setTop(top);
}

/*
 *	METHOD	setLeft
 *
 *		Sets the left coordinate of the <DIV> containing DalaiLlama
 *
 *		@param	left: CSS string indicating distance in pixels from the left of the
 *			document
 */
IZKflashDalai.prototype.setLeft = function(left) {
	this.style.left = left;
}

/*
 *	METHOD	setTop
 *
 *		Sets the top coordinate of the <DIV> containing DalaiLlama
 *
 *		@param	top: CSS string indicating distance in pixels from the top of the
 *			document
 */
IZKflashDalai.prototype.setTop = function(top) {
	this.style.top = top;
}

/*
 *	METHOD	setSize
 *
 *		Sets the area of the <DIV> containing DalaiLlama
 *
 *		@param	width: CSS string indicating <DIV> container's width in pixels
 *		@param	height: CSS string indicating <DIV> container's height in pixels
 */
IZKflashDalai.prototype.setSize = function(width, height) {
	this.setWidth(width);
	this.setHeight(height);
}

/*
 *	METHOD	setWidth
 *
 *		Sets the width of the <DIV> containing DalaiLlama
 *
 *		@param	width: CSS string indicating <DIV> container's width in pixels
 */
IZKflashDalai.prototype.setWidth = function(width) {
	this.style.width = width;
}

/*
 *	METHOD	setHeight
 *
 *		Sets the height of the <DIV> containing DalaiLlama
 *
 *		@param	width: CSS string indicating <DIV> container's height in pixels
 */
IZKflashDalai.prototype.setHeight = function(height) {
	this.style.height = height;
}

/*
 *	METHOD	loadVideoClip
 *
 *		Requests a new pmmsid from DalaiLlama, if the <DIV> container is hidden it
 *		makes it visible
 *
 *		@param	pmmsid: string indicating a new target video clip for DalaiLlama
 *		@param	captions: An array of caption strings, empty string or null
 *		@param	skin: A string ("blue" or "grey") or null
 */
IZKflashDalai.prototype.loadVideoClip = function(pmmsid, captions, skin) {
	var _skin = skin || "grey";
	var _captions = captions || "";
	this.player.PlayVideoLarge(pmmsid, _captions, _skin);
	this.show();
}



/*
 *	METHOD	openPlaylist
 *
 *		Requests a playlist from DalaiLlama
 *
 *		@param	see DalaiLlama
 */
IZKflashDalai.prototype.openPlaylist = function(server, pls, start, startid) {
	this.player.OpenPlaylist(server, pls, start, startid);
}

/*
 *	METHOD	loadAudioClip
 *
 *		Requests a new pmmsid from DalaiLlama, if the <DIV> container is hidden it
 *		makes it visible
 *
 *		@param	pmmsid: string indicating a new target video clip for DalaiLlama
 *		@param	captions: An array of caption strings, empty string or null
 *		@param	skin: A string ("blue" or "grey") or null
 */
IZKflashDalai.prototype.loadAudioClip = function(pmmsid, captions, skin) {
	var _skin = skin || "grey";
	var _captions = captions || "";
	this.player.PlayAudioLarge(pmmsid, _captions, _skin);
	this.show();
}

/*
 *	METHOD	loadURL
 *
 *		Requests a new url into the player's designated area.
 *
 *		@param	url: string indicating the new url
 */
IZKflashDalai.prototype.loadURL = function(url) {
	this.iframe.src = url;
	this.show();
}

/*
 *	METHOD	setBgColor
 *
 *		Sets the <DIV> element's background color:
 *
 *		@param	color: CSS string indicating a new color value for the <DIV> 
 *			containers background
 */
IZKflashDalai.prototype.setBgColor = function(color) {
	this.style.backgroundColor = color;
}

/*
 *	METHOD	show
 *
 *		makes the <DIV> element visible
 */
IZKflashDalai.prototype.show = function() {
	if(!this.isVisible()) {
		this.style.display = "block";
	}
	if(this.curtain) {
		this.curtainFrameStyle.display = "none";
		this.curtainFrame.src = "";
		window.currentItem = null;
		window.newPlayerInstance = true;
		window.g_MotifId = null;
		window.g_expandOnLoad = false;
	}
}

/*
 *	METHOD	hide
 *
 *		hides the <DIV> element
 */
IZKflashDalai.prototype.hide = function() {
	if(this.isVisible()) {
		this.style.display = "none";
		this.iframe.src = "";
		if(this.curtain) {
			this.curtainFrameStyle.display = "none";
			this.curtainFrame.src = "";
			window.currentItem = null;
			window.newPlayerInstance = true;
			window.g_MotifId = null;
			window.g_expandOnLoad = false;
		}
	}
}

/*
 *	METHOD	isVisible
 *	
 *		@returns	Boolean indicating whether the <DIV> element is visible or not
 */
IZKflashDalai.prototype.isVisible = function() {
	if(this.style.display == "block") {
		return true;
	}
	return false;
}

this.IZKflashDalai = new IZKflashDalai(this.DalaiLlama);