var Spry;
if (!Spry) Spry = {};
if (!Spry.Widget) Spry.Widget = {};
Spry.Widget.SlidingPanels = function (element, opts) {
    this.element = this.getElement(element);
    this.enableAnimation = true;
    this.currentPanel = null;
    this.enableKeyboardNavigation = false;
    this.hasFocus = true;
    this.previousPanelKeyCode = Spry.Widget.SlidingPanels.KEY_LEFT;
    this.nextPanelKeyCode = Spry.Widget.SlidingPanels.KEY_RIGHT;
    this.currentPanelClass = "SlidingPanelsCurrentPanel";
    this.focusedClass = "SlidingPanelsFocused";
    this.animatingClass = "SlidingPanelsAnimating";
    Spry.Widget.SlidingPanels.setOptions(this, opts);
    if (this.element) this.element.style.overflow = "hidden";
    if (this.defaultPanel) {
        if (typeof this.defaultPanel == "number") this.currentPanel = this.getContentPanels()[this.defaultPanel];
        else this.currentPanel = this.getElement(this.defaultPanel);
    }
    if (!this.currentPanel) this.currentPanel = this.getContentPanels()[0];
    if (Spry.Widget.SlidingPanels.onloadDidFire) this.attachBehaviors();
    else Spry.Widget.SlidingPanels.loadQueue.push(this);
};
Spry.Widget.SlidingPanels.prototype.onFocus = function (e) {
	var key = e.keyCode;
	alert(key);
	if(key != 32){
    this.hasFocus = true;
    this.addClassName(this.element, this.focusedClass);
    return false;
   	}
};
Spry.Widget.SlidingPanels.prototype.onBlur = function (e) {
    this.hasFocus = false;
    this.removeClassName(this.element, this.focusedClass);
    return false;
};
Spry.Widget.SlidingPanels.KEY_LEFT = 33;
Spry.Widget.SlidingPanels.KEY_UP = 38;
Spry.Widget.SlidingPanels.KEY_RIGHT = 34;
Spry.Widget.SlidingPanels.KEY_DOWN = 40;
Spry.Widget.SlidingPanels.prototype.onKeyDown = function (e) {
    var key = e.keyCode;
    
    if (!this.hasFocus || (key != this.previousPanelKeyCode && key != this.nextPanelKeyCode) || key != 32) return true;
    if (key == this.nextPanelKeyCode) this.showNextPanel();
    else this.showPreviousPanel();
    if (e.preventDefault) e.preventDefault();
    else e.returnValue = false;
    if (e.stopPropagation) e.stopPropagation();
    else e.cancelBubble = true;
    return false;
};
Spry.Widget.SlidingPanels.prototype.attachBehaviors = function () {
    var ele = this.element;
    if (!ele) return;
    if (this.enableKeyboardNavigation) {
        var focusEle = null;
        var tabIndexAttr = ele.attributes.getNamedItem("tabindex");
        if (tabIndexAttr || ele.nodeName.toLowerCase() == "a") focusEle = ele;
        if (focusEle) {
            var self = this;
            Spry.Widget.SlidingPanels.addEventListener(focusEle, "focus", function (e) {
                return self.onFocus(e || window.event);
            }, false);
            Spry.Widget.SlidingPanels.addEventListener(focusEle, "blur", function (e) {
                return self.onBlur(e || window.event);
            }, false);
            Spry.Widget.SlidingPanels.addEventListener(focusEle, "keydown", function (e) {
                return self.onKeyDown(e || window.event);
            }, false);
        }
    }
    if (this.currentPanel) {
        var ea = this.enableAnimation;
        this.enableAnimation = false;
        this.showPanel(this.currentPanel);
        this.enableAnimation = ea;
    }
};
Spry.Widget.SlidingPanels.prototype.getElement = function (ele) {
    if (ele && typeof ele == "string") return document.getElementById(ele);
    return ele;
};
Spry.Widget.SlidingPanels.prototype.addClassName = function (ele, className) {
    if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) != -1)) return;
    ele.className += (ele.className ? " " : "") + className;
};
Spry.Widget.SlidingPanels.prototype.removeClassName = function (ele, className) {
    if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) == -1)) return;
    ele.className = ele.className.replace(new RegExp("\\s*\\b" + className + "\\b", "g"), "");
};
Spry.Widget.SlidingPanels.setOptions = function (obj, optionsObj, ignoreUndefinedProps) {
    if (!optionsObj) return;
    for (var optionName in optionsObj) {
        if (ignoreUndefinedProps && optionsObj[optionName] == undefined) continue;
        obj[optionName] = optionsObj[optionName];
    }
};
Spry.Widget.SlidingPanels.prototype.getElementChildren = function (element) {
    var children = [];
    var child = element.firstChild;
    while (child) {
        if (child.nodeType == 1) children.push(child);
        child = child.nextSibling;
    }
    return children;
};
Spry.Widget.SlidingPanels.prototype.getCurrentPanel = function () {
    return this.currentPanel;
};
Spry.Widget.SlidingPanels.prototype.getContentGroup = function () {
    return this.getElementChildren(this.element)[0];
};
Spry.Widget.SlidingPanels.prototype.getContentPanels = function () {
    return this.getElementChildren(this.getContentGroup());
};
Spry.Widget.SlidingPanels.prototype.getContentPanelsCount = function () {
    return this.getContentPanels().length;
};
Spry.Widget.SlidingPanels.onloadDidFire = false;
Spry.Widget.SlidingPanels.loadQueue = [];
Spry.Widget.SlidingPanels.addLoadListener = function (handler) {
    if (typeof window.addEventListener != 'undefined') window.addEventListener('load', handler, false);
    else if (typeof document.addEventListener != 'undefined') document.addEventListener('load', handler, false);
    else if (typeof window.attachEvent != 'undefined') window.attachEvent('onload', handler);
};
Spry.Widget.SlidingPanels.processLoadQueue = function (handler) {
    Spry.Widget.SlidingPanels.onloadDidFire = true;
    var q = Spry.Widget.SlidingPanels.loadQueue;
    var qlen = q.length;
    for (var i = 0; i < qlen; i++)
    q[i].attachBehaviors();
};
Spry.Widget.SlidingPanels.addLoadListener(Spry.Widget.SlidingPanels.processLoadQueue);
Spry.Widget.SlidingPanels.addEventListener = function (element, eventType, handler, capture) {
    try {
        if (element.addEventListener) element.addEventListener(eventType, handler, capture);
        else if (element.attachEvent) element.attachEvent("on" + eventType, handler);
    } catch (e) {}
};
Spry.Widget.SlidingPanels.prototype.getContentPanelIndex = function (ele) {
    if (ele) {
        ele = this.getElement(ele);
        var panels = this.getContentPanels();
        var numPanels = panels.length;
        for (var i = 0; i < numPanels; i++) {
            if (panels[i] == ele) return i;
        }
    }
    return -1;
};
Spry.Widget.SlidingPanels.prototype.showPanel = function (elementOrIndex) {
    var pIndex = -1;
    if (typeof elementOrIndex == "number") pIndex = elementOrIndex;
    else pIndex = this.getContentPanelIndex(elementOrIndex);
    var numPanels = this.getContentPanelsCount();
    if (numPanels > 0) pIndex = (pIndex >= numPanels) ? numPanels - 1 : pIndex;
    else pIndex = 0;
    var panel = this.getContentPanels()[pIndex];
    var contentGroup = this.getContentGroup();
    if (panel && contentGroup) {
        if (this.currentPanel) this.removeClassName(this.currentPanel, this.currentPanelClass);
        this.currentPanel = panel;
        var nx = -panel.offsetLeft;
        var ny = -panel.offsetTop;
        if (this.enableAnimation) {
            if (this.animator) this.animator.stop();
            var cx = contentGroup.offsetLeft;
            var cy = contentGroup.offsetTop;
            if (cx != nx || cy != ny) {
                var self = this;
                this.addClassName(this.element, this.animatingClass);
                this.animator = new Spry.Widget.SlidingPanels.PanelAnimator(contentGroup, cx, cy, nx, ny, {
                    duration: this.duration,
                    fps: this.fps,
                    transition: this.transition,
                    finish: function () {
                        self.removeClassName(self.element, self.animatingClass);
                        self.addClassName(panel, self.currentPanelClass);
                    }
                });
                this.animator.start();
            }
        } else {
            contentGroup.style.left = nx + "px";
            contentGroup.style.top = ny + "px";
            this.addClassName(panel, this.currentPanelClass);
        }
    }
    return panel;
};
Spry.Widget.SlidingPanels.prototype.showFirstPanel = function () {
    return this.showPanel(0);
};
Spry.Widget.SlidingPanels.prototype.showLastPanel = function () {
    return this.showPanel(this.getContentPanels().length - 1);
};
Spry.Widget.SlidingPanels.prototype.showPreviousPanel = function () {
    return this.showPanel(this.getContentPanelIndex(this.currentPanel) - 1);
};
Spry.Widget.SlidingPanels.prototype.showNextPanel = function () {
    return this.showPanel(this.getContentPanelIndex(this.currentPanel) + 1);
};
Spry.Widget.SlidingPanels.PanelAnimator = function (ele, curX, curY, dstX, dstY, opts) {
    this.element = ele;
    this.curX = curX;
    this.curY = curY;
    this.dstX = dstX;
    this.dstY = dstY;
    this.fps = 60;
    this.duration = 2000;
    this.transition = Spry.Widget.SlidingPanels.PanelAnimator.defaultTransition;
    this.startTime = 0;
    this.timerID = 0;
    this.finish = null;
    var self = this;
    this.intervalFunc = function () {
        self.step();
    };
    Spry.Widget.SlidingPanels.setOptions(this, opts, true);
    this.interval = 1000 / this.fps;
};
Spry.Widget.SlidingPanels.PanelAnimator.defaultTransition = function (time, begin, finish, duration) {
    time /= duration;
    return begin + ((2 - time) * time * finish);
};
Spry.Widget.SlidingPanels.PanelAnimator.prototype.start = function () {
    this.stop();
    this.startTime = (new Date()).getTime();
    this.timerID = setTimeout(this.intervalFunc, this.interval);
};
Spry.Widget.SlidingPanels.PanelAnimator.prototype.stop = function () {
    if (this.timerID) clearTimeout(this.timerID);
    this.timerID = 0;
};
Spry.Widget.SlidingPanels.PanelAnimator.prototype.step = function () {
    var elapsedTime = (new Date()).getTime() - this.startTime;
    var done = elapsedTime >= this.duration;
    var x, y;
    if (done) {
        x = this.curX = this.dstX;
        y = this.curY = this.dstY;
    } else {
        x = this.transition(elapsedTime, this.curX, this.dstX - this.curX, this.duration);
        y = this.transition(elapsedTime, this.curY, this.dstY - this.curY, this.duration);
    }
    this.element.style.left = x + "px";
    this.element.style.top = y + "px";
    if (!done) this.timerID = setTimeout(this.intervalFunc, this.interval);
    else if (this.finish) this.finish();
};