WBoxOptions = Object.extend({    

    loadingImage: "images/loader.gif",

	dataBackColor:"#bca37b",

	overlayColor: "#000000",

	borderColor: "#FFFFFF",

	overlayOpacity: 0.7,

    resizeSpeed: 5, 

    borderSize: 2, 

	dataHeight: 30,

	enableSlidey: true,

	slideyDelay: 3000,

	dataDisplay: "bottom" // top or bottom

}, window.WBoxOptions || {});



var WBox = Class.create();



WBox.prototype = {



	imageArray: [],

	sliding: false,

	doSlidey: false,

	slideInt: null,

	



	initialize: function() 

	{

		this.updateImageList();		

		if (WBoxOptions.resizeSpeed > 10) WBoxOptions.resizeSpeed = 10;

        if (WBoxOptions.resizeSpeed < 1)  WBoxOptions.resizeSpeed = 1;

	    this.resizeDuration = (11 - WBoxOptions.resizeSpeed) * 0.15;

	    this.overlayDuration = 0.2;				

		var objBody = $$("body")[0];

		objBody.appendChild(Builder.node("div",{id:"overlay"}));		

		objBody.appendChild(Builder.node("div",{id:"wbox_wrapper"}));				

			

		if (WBoxOptions.dataDisplay == "top")

		{			

			$("wbox_wrapper").appendChild(Builder.node("div",{id:"wbox_data"},[

				Builder.node("div",{id:"data_wrapper" },[

					Builder.node("div",{id:"controls" },[					

						Builder.node("a",{id:"slideLink", href: "javascript:void(0);", title: "Slidshow!" }),

						Builder.node("a",{id:"prevLink", href: "javascript:void(0);", title: "previous!" }),						

						Builder.node("a",{id:"nextLink", href: "javascript:void(0);", title: "next!" }),

						Builder.node("a",{id:"closeLink", href: "javascript:void(0);", title: "close!" })

					]),

					Builder.node("div",{id:"info" })

				])

			]));

		}	

		

		$("wbox_wrapper").appendChild(Builder.node("div",{id:"wbox"},[

			Builder.node("div",{id:"wbox_content"},[

				 Builder.node("img",{id:"wboxImage"})

			]), 

			Builder.node("div",{id:"loading"}, 

				Builder.node("img", {src: WBoxOptions.loadingImage})

			)

		]));

		

		if (WBoxOptions.dataDisplay == "bottom")

		{

			$("wbox_wrapper").appendChild(Builder.node("div",{id:"wbox_data"},[

				Builder.node("div",{id:"data_wrapper" },[

					Builder.node("div",{id:"controls" },[					

						Builder.node("a",{id:"slideLink", href: "javascript:void(0);", title: "Slidshow!" }),

						Builder.node("a",{id:"prevLink", href: "javascript:void(0);", title: "previous!" }),						

						Builder.node("a",{id:"nextLink", href: "javascript:void(0);", title: "next!" }),

						Builder.node("a",{id:"closeLink", href: "javascript:void(0);", title: "close!" })

					]),

					Builder.node("div",{id:"info" })

				])

			]));

		}		

		

		$("overlay").setStyle({ backgroundColor: WBoxOptions.overlayColor });		

		$("overlay").hide().observe("click", (function() { this.end(); }).bind(this));			

		$("wbox_wrapper").hide().observe("click", (function(event) { if (event.element().id == "wbox_wrapper") this.end(); }).bind(this));

		$("wbox").hide().observe("click", (function(event) { this.end(); }).bind(this));

		

		$("closeLink").hide().observe("click", (function(event) { this.end(); }).bind(this));

		

		if (WBoxOptions.enableSlidey == true)

			$("slideLink").hide().observe("click", (function(event) { 

				--this.activeImage;

				this.slidey(); 

			}).bind(this));

		else

			$("slideLink").hide();

			

		$("wbox_data").hide();	

	

		$("wbox_content").setStyle({padding:WBoxOptions.borderSize + "px"});		

		$("prevLink").observe("click", (function(event) { event.stop(); this.changeImage(this.activeImage - 1); }).bindAsEventListener(this));

		$("nextLink").observe("click", (function(event) { event.stop(); this.changeImage(this.activeImage + 1); }).bindAsEventListener(this));	

	

		$("wbox").setStyle({ backgroundColor: WBoxOptions.borderColor });

		

		iHeight = WBoxOptions.dataHeight - WBoxOptions.borderSize;

		$("info").setStyle({ lineHeight: iHeight + "px" });	

		if (WBoxOptions.dataDisplay == "top")

			$("controls").setStyle({ top: WBoxOptions.borderSize + "px", right: WBoxOptions.borderSize + "px" });		

		else

			$("controls").setStyle({ top: "0px", right: WBoxOptions.borderSize + "px" });	

	},

	

	updateImageList: function() {   

        this.updateImageList = Prototype.emptyFunction;

        document.observe("click", (function(event){

            var target = event.findElement("a[rel^=wbox]") || event.findElement("area[rel^=wbox]");

            if (target) {

                event.stop();

                this.begin(target);

            }

			var target = event.findElement("a[rel^=slidey]") || event.findElement("area[rel^=slidey]");

			if (target) {

                event.stop();

                this.beginSlidey(target);

            }

        }).bind(this));

    },

	

	beginSlidey: function(imageLink)

	{

		this.sliding = true;

		this.begin(imageLink);

	},

	

	begin: function(imageLink) 

	{

		$$("select", "object", "embed").each(function(node){ node.style.visibility = "hidden" });		

		

		$("wbox").setStyle({ width: "32px", height: "32px"});

		$("wbox_data").setStyle({ width: "32px", height: "32px"});

		

		var arrayPageSize = this.getPageSize();

        $("overlay").setStyle({ width: arrayPageSize[0] + "px", height: arrayPageSize[1] + "px" });				

		this.imageArray = [];

        var imageNum = 0;   

        if ((imageLink.rel == "lightbox")){

            this.imageArray.push([imageLink.href, imageLink.title]);         

        } else {

            this.imageArray = 

                $$(imageLink.tagName + "[href][rel=\"" + imageLink.rel + "\"]").

                collect(function(anchor){ return [anchor.href, anchor.title]; }).uniq();            

            while (this.imageArray[imageNum][0] != imageLink.href) { imageNum++; }

        }		

		var arrayPageScroll = document.viewport.getScrollOffsets();

        var wboxTop = arrayPageScroll[1] + (document.viewport.getHeight() / 10);

        var wboxLeft = arrayPageScroll[0];		

		new Effect.Appear("overlay", { duration: this.overlayDuration, from: 0.0, to: WBoxOptions.overlayOpacity, afterFinish: function(){

			$("wbox_data").setStyle({ top: wboxTop + "px", left: wboxLeft + "px" });			

			$("wbox").setStyle({ top: wboxTop + "px", left: wboxLeft + "px" }).show();

			$("wbox_wrapper").show();

			myWBox.changeImage(imageNum);

		}});		

	},

	

	slidey: function()

	{

		this.sliding = true;	

		++this.activeImage;		

		if (this.activeImage > (this.imageArray.length - 1)) this.activeImage = 0;		

		this.changeImage(this.activeImage);

	},

	

	endSlidey: function()

	{

		clearTimeout(this.slideInt);

		this.sliding = false;

		this.doSlidey = false;		

	},	

	

	changeImage: function(imageNum)

	{

		this.activeImage = imageNum;

		$("loading").show();

		$("wboxImage").hide();

		$("wbox_data").hide();

		$("controls").hide();

		$("prevLink").hide();

		$("nextLink").hide();		

		$("info").hide();

		$("slideLink").hide();		

		$("closeLink").show();	

		

		

		if (this.activeImage > 0) $("prevLink").show();	

		if (this.activeImage < (this.imageArray.length - 1)) $("nextLink").show();	

	

		if (this.imageArray.length > 1)

		{

			$("slideLink").show();

		}			

		var imgPreloader = new Image();        

        imgPreloader.onload = (function(){

            $("loading").hide();

			$("wboxImage").src = this.imageArray[this.activeImage][0];

            this.resizeImageContainer(imgPreloader.width, imgPreloader.height);



        }).bind(this);

        imgPreloader.src = this.imageArray[this.activeImage][0];

	},

	

    resizeImageContainer: function(imgWidth, imgHeight) {

        // get current width and height

        var widthCurrent  = $("wbox").getWidth();

        var heightCurrent = $("wbox").getHeight();

        // get new width and height

        var widthNew  = (imgWidth  + WBoxOptions.borderSize * 2);

        var heightNew = (imgHeight + WBoxOptions.borderSize * 2);

        // scalars based on change from old to new

        var xScale = (widthNew  / widthCurrent)  * 100;

        var yScale = (heightNew / heightCurrent) * 100;

        // calculate size difference between new and old image, and resize if necessary

        var wDiff = widthCurrent - widthNew;

        var hDiff = heightCurrent - heightNew;

        if (hDiff != 0) new Effect.Scale("wbox", yScale, {scaleX: false, duration: this.resizeDuration}); 

        if (wDiff != 0) new Effect.Scale("wbox", xScale, {scaleY: false, duration: this.resizeDuration}); 		

		var dataWidth = widthNew - WBoxOptions.borderSize * 2;	

		var dataH =WBoxOptions.dataHeight - WBoxOptions.borderSize;	

		$("wbox_data").setStyle({width: widthNew+"px",height:WBoxOptions.dataHeight+"px"});					

		$("data_wrapper").setStyle({width:dataWidth+"px",height:dataH+"px",backgroundColor:WBoxOptions.dataBackColor});

		if (WBoxOptions.dataDisplay == "top")

			$("data_wrapper").setStyle({borderLeft:WBoxOptions.borderSize + "px solid "+WBoxOptions.borderColor, borderRight:WBoxOptions.borderSize + "px solid "+WBoxOptions.borderColor,borderTop:WBoxOptions.borderSize + "px solid "+WBoxOptions.borderColor})

		else

			$("data_wrapper").setStyle({borderLeft:WBoxOptions.borderSize + "px solid "+WBoxOptions.borderColor,borderRight:WBoxOptions.borderSize + "px solid "+WBoxOptions.borderColor,borderBottom:WBoxOptions.borderSize + "px solid "+WBoxOptions.borderColor})

             

		this.showImage();		

    },

	

    showImage: function(){		

		this.doSlidey = (this.sliding && WBoxOptions.enableSlidey);		

        new Effect.Appear("wboxImage", { 

            duration: this.resizeDuration, 

            queue: "end",

			afterFinish: function()

			{				

				if (myWBox.doSlidey == true)

					myWBox.slideInt = setTimeout("myWBox.slidey()",WBoxOptions.slideyDelay);

				else

					myWBox.showData();

			}

        });

		this.preloadNeighborImages();

    },	

	

	showData: function()

	{

        if (this.imageArray[this.activeImage][1] != "")

            $("info").update(this.imageArray[this.activeImage][1]).show();	

		

		Effect.SlideDown("wbox_data",{ 

			afterFinish: function()

			{				

				$("info").appear();

				$("controls").appear();

			}

		});

	},

	

	preloadNeighborImages: function(){

        var preloadNextImage, preloadPrevImage;

        if (this.imageArray.length > this.activeImage + 1){

            preloadNextImage = new Image();

            preloadNextImage.src = this.imageArray[this.activeImage + 1][0];

        }

        if (this.activeImage > 0){

            preloadPrevImage = new Image();

            preloadPrevImage.src = this.imageArray[this.activeImage - 1][0];

        }

    

    },

	

	end: function()

	{

		this.endSlidey();

		new Effect.Fade("overlay", { duration: this.overlayDuration });

		new Effect.Fade("wbox_wrapper", { duration: this.overlayDuration });

		$$("select", "object", "embed").each(function(node){ node.style.visibility = "visible" });

	},

	

	getPageSize: function() {

	        

	    var xScroll, yScroll;



		if (window.innerHeight && window.scrollMaxY) { 

		xScroll = document.body.scrollWidth;

		yScroll = window.innerHeight + window.scrollMaxY;

		} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac

		xScroll = document.body.scrollWidth;

		yScroll = document.body.scrollHeight;

		} else if (document.documentElement && document.documentElement.scrollHeight > document.documentElement.offsetHeight){ // Explorer 6 strict mode

		xScroll = document.documentElement.scrollWidth;

		yScroll = document.documentElement.scrollHeight;

		} else { // Explorer Mac...would also work in Mozilla and Safari

		xScroll = document.body.offsetWidth;

		yScroll = document.body.offsetHeight;

		}

		

		var windowWidth, windowHeight;

		if (self.innerHeight) { // all except Explorer

		windowWidth = self.innerWidth;

		windowHeight = self.innerHeight;

		} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode

		windowWidth = document.documentElement.clientWidth;

		windowHeight = document.documentElement.clientHeight;

		} else if (document.body) { // other Explorers

		windowWidth = document.body.clientWidth;

		windowHeight = document.body.clientHeight;

		} 

		

		// for small pages with total height less then height of the viewport

		if(yScroll < windowHeight){

		pageHeight = windowHeight;

		} else { 

		pageHeight = yScroll;

		}

		

		// for small pages with total width less then width of the viewport

		if(xScroll < windowWidth){ 

		pageWidth = windowWidth;

		} else {

		pageWidth = xScroll;

		}

		

		

		arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 

		return arrayPageSize;

		}	

}



document.observe("dom:loaded", function () { myWBox = new WBox(); });