(function ($) {
    $.fn.tickerTape = function (o) {
        if (typeof o == 'string') {
            var instance = $(this).data('tickerTape'), args = Array.prototype.slice.call(arguments, 1);
            return instance[o].apply(instance, args);
        }
        else

            return this.each(function () {
                $(this).data('tickerTape', new $tt(this, o));
            });
    };
    var defaults = {
        vertical: false, start: 1, offset: 1, size: null, scroll: 3, visible: null, animation: 'normal', easing: 'swing', auto: 0, wrap: null, initCallback: null, reloadCallback: null, itemLoadCallback: null, itemFirstInCallback: null, itemFirstOutCallback: null, itemLastInCallback: null, itemLastOutCallback: null, itemVisibleInCallback: null, itemVisibleOutCallback: null, buttonNextHTML: '<div></div>', buttonPrevHTML: '<div></div>', buttonNextEvent: 'click', buttonPrevEvent: 'click', buttonNextCallback: null, buttonPrevCallback: null
    };
    $.tickerTape = function (e, o) {
        this.options = $.extend({}, defaults, o || {});
        this.locked = false;
        this.container = null;
        this.clip = null;
        this.list = null;
        this.buttonNext = null;
        this.buttonPrev = null;
        this.wh = !this.options.vertical ? 'width' : 'height';
        this.lt = !this.options.vertical ? 'left' : 'top';
        var skin = '', split = e.className.split(' ');
        for (var i = 0; i < split.length; i++) {
            if (split[i].indexOf('tickerTape-skin') != -1) {
                $(e).removeClass(split[i]);
                skin = split[i]; break;
            }
        }
        if (e.nodeName == 'UL' || e.nodeName == 'OL') {
            this.list = $(e);
            this.container = this.list.parent();
            if (this.container.hasClass('tickerTape-clip')) {
                if (!this.container.parent().hasClass('tickerTape-container'))
                    this.container = this.container.wrap('<div></div>');
                this.container = this.container.parent();
            }
            else if (!this.container.hasClass('tickerTape-container'))
                this.container = this.list.wrap('<div></div>').parent();
        }
        else {
            this.container = $(e);
            this.list = this.container.find('ul,ol').eq(0);
        }
        if (skin != '' && this.container.parent()[0].className.indexOf('tickerTape-skin') == -1)
            this.container.wrap('<div class=" ' + skin + '"></div>');
        this.clip = this.list.parent();
        if (!this.clip.length || !this.clip.hasClass('tickerTape-clip'))
            this.clip = this.list.wrap('<div></div>').parent();
        this.buttonNext = $('.tickerTape-next', this.container);
        if (this.buttonNext.size() == 0 && this.options.buttonNextHTML != null)
            this.buttonNext = this.clip.after(this.options.buttonNextHTML).next();
        this.buttonNext.addClass(this.className('tickerTape-next'));
        this.buttonPrev = $('.tickerTape-prev', this.container);
        if (this.buttonPrev.size() == 0 && this.options.buttonPrevHTML != null)
            this.buttonPrev = this.clip.after(this.options.buttonPrevHTML).next();
        this.buttonPrev.addClass(this.className('tickerTape-prev'));
        this.clip.addClass(this.className('tickerTape-clip')).css({ overflow: 'hidden', position: 'relative' });
        this.list.addClass(this.className('tickerTape-list')).css({ overflow: 'hidden', position: 'relative', top: 0, left: 0, margin: 0, padding: 0 });
        this.container.addClass(this.className('tickerTape-container')).css({ position: 'relative' });
        var di = this.options.visible != null ? Math.ceil(this.clipping() / this.options.visible) : null;
        var li = this.list.children('li');
        var self = this; if (li.size() > 0) {
            var wh = 0, i = this.options.offset; li.each(function () {
                self.format(this, i++);
                wh += self.dimension(this, di);
            });
            this.list.css(this.wh, wh + 'px');
            if (!o || o.size === undefined)
                this.options.size = li.size();
        }
        this.container.css('display', 'block');
        this.buttonNext.css('display', 'block');
        this.buttonPrev.css('display', 'block');
        this.funcNext = function () {
            self.next();
        };
        this.funcPrev = function () {
            self.prev();
        };
        this.funcResize = function () {
            self.reload();
        };
        if (this.options.initCallback != null)
            this.options.initCallback(this, 'init');
        if ($.browser.safari) {
            this.buttons(false, false);
            $(window).bind('load.tickerTape', function () {
                self.setup();
            });
        } else 
            this.setup();
    };
    var $tt = $.tickerTape;
    $tt.fn = $tt.prototype = {
        tickerTape: '0.2.4'
    };
    $tt.fn.extend = $tt.extend = $.extend;
    $tt.fn.extend({
        setup: function () {
            this.first = null;
            this.last = null;
            this.prevFirst = null;
            this.prevLast = null;
            this.animating = false;
            this.timer = null;
            this.tail = null;
            this.inTail = false;
            if (this.locked)
                return;
            this.list.css(this.lt, this.pos(this.options.offset) + 'px');
            var p = this.pos(this.options.start);
            this.prevFirst = this.prevLast = null;
            this.animate(p, false);
            $(window).unbind('resize.tickerTape', this.funcResize).bind('resize.tickerTape', this.funcResize);
        },
        reset: function () {
            this.list.empty(); this.list.css(this.lt, '0px');
            this.list.css(this.wh, '10px');
            if (this.options.initCallback != null)
                this.options.initCallback(this, 'reset');
            this.setup();
        },
        reload: function () {
            if (this.tail != null && this.inTail)
                this.list.css(this.lt, $tt.intval(this.list.css(this.lt)) + this.tail);
            this.tail = null;
            this.inTail = false;
            if (this.options.reloadCallback != null)
                this.options.reloadCallback(this);
            if (this.options.visible != null) {
                var self = this;
                var di = Math.ceil(this.clipping() / this.options.visible), wh = 0, lt = 0;
                $('li', this.list).each(function (i) {
                    wh += self.dimension(this, di);
                    if (i + 1 < self.first)
                        lt = wh;
                });
                this.list.css(this.wh, wh + 'px');
                this.list.css(this.lt, -lt + 'px');
            }
            this.scroll(this.first, false);
        },
        lock: function () {
            this.locked = true; this.buttons();
        },
        unlock: function () {
            this.locked = false; this.buttons();
        }, 
        size: function (s) {
            if (s != undefined) {
                this.options.size = s;
                if (!this.locked) 
                    this.buttons();
            }
            return this.options.size;
        },
        has: function (i, i2) {
            if (i2 == undefined || !i2)
                i2 = i;
            if (this.options.size !== null && i2 > this.options.size)
                i2 = this.options.size;
            for (var j = i; j <= i2; j++) {
                var e = this.get(j);
                if (!e.length || e.hasClass('tickerTape-item-placeholder'))
                    return false;
            }
            return true;
        },
        get: function (i) {
            return $('.tickerTape-item-' + i, this.list);
        }, 
        add: function (i, s) {
            var e = this.get(i), old = 0, add = 0;
            if (e.length == 0) {
                var c, e = this.create(i), j = $tt.intval(i);
                while (c = this.get(--j)) {
                    if (j <= 0 || c.length) {
                        j <= 0 ? this.list.prepend(e) : c.after(e);
                        break;
                    }
                }
            } 
            else
                old = this.dimension(e);
            e.removeClass(this.className('tickerTape-item-placeholder'));
            typeof s == 'string' ? e.html(s) : e.empty().append(s);
            var di = this.options.visible != null ? Math.ceil(this.clipping() / this.options.visible) : null;
            var wh = this.dimension(e, di) - old;
            if (i > 0 && i < this.first)
                this.list.css(this.lt, $tt.intval(this.list.css(this.lt)) - wh + 'px');
            this.list.css(this.wh, $tt.intval(this.list.css(this.wh)) + wh + 'px'); 
            return e;
        },
        remove: function (i) {
            var e = this.get(i);
            if (!e.length || (i >= this.first && i <= this.last))
                return;
            var d = this.dimension(e);
            if (i < this.first)
                this.list.css(this.lt, $tt.intval(this.list.css(this.lt)) + d + 'px');
            e.remove();
            this.list.css(this.wh, $tt.intval(this.list.css(this.wh)) - d + 'px');
        }, 
        next: function () {
            this.stopAuto();
            if (this.tail != null && !this.inTail)
                this.scrollTail(false); 
            else
                this.scroll(((this.options.wrap == 'both' || this.options.wrap == 'last') && this.options.size != null && this.last == this.options.size) ? 1 : this.first + this.options.scroll);
        }, 
        prev: function () {
            this.stopAuto();
            if (this.tail != null && this.inTail)
                this.scrollTail(true); 
            else
                this.scroll(((this.options.wrap == 'both' || this.options.wrap == 'first') && this.options.size != null && this.first == 1) ? this.options.size : this.first - this.options.scroll);
        },
        scrollTail: function (b) {
            if (this.locked || this.animating || !this.tail)
                return;
            var pos = $tt.intval(this.list.css(this.lt));
            !b ? pos -= this.tail : pos += this.tail;
            this.inTail = !b;
            this.prevFirst = this.first;
            this.prevLast = this.last;
            this.animate(pos);
        },
        scroll: function (i, a) {
            if (this.locked || this.animating)
                return;
            this.animate(this.pos(i), a);
        },
        pos: function (i) {
            var pos = $tt.intval(this.list.css(this.lt));
            if (this.locked || this.animating)
                return pos;
            if (this.options.wrap != 'circular')
                i = i < 1 ? 1 : (this.options.size && i > this.options.size ? this.options.size : i);
            var back = this.first > i;
            var f = this.options.wrap != 'circular' && this.first <= 1 ? 1 : this.first;
            var c = back ? this.get(f) : this.get(this.last);
            var j = back ? f : f - 1;
            var e = null, l = 0, p = false, d = 0, g;
            while (back ? --j >= i : ++j < i) {
                e = this.get(j);
                p = !e.length;
                if (e.length == 0) {
                    e = this.create(j).addClass(this.className('tickerTape-item-placeholder'));
                    c[back ? 'before' : 'after'](e);
                    if (this.first != null && this.options.wrap == 'circular' && this.options.size !== null && (j <= 0 || j > this.options.size)) {
                        g = this.get(this.index(j));
                        if (g.length)
                            this.add(j, g.children().clone(true));
                    }
                }
                c = e;
                d = this.dimension(e);
                if (p)
                    l += d;
                if (this.first != null && (this.options.wrap == 'circular' || (j >= 1 && (this.options.size == null || j <= this.options.size))))
                    pos = back ? pos + d : pos - d;
            }
            var clipping = this.clipping();
            var cache = [];
            var visible = 0, j = i, v = 0;
            var c = this.get(i - 1);
            while (++visible) {
                e = this.get(j);
                p = !e.length;
                if (e.length == 0) {
                    e = this.create(j).addClass(this.className('tickerTape-item-placeholder'));
                    c.length == 0 ? this.list.prepend(e) : c[back ? 'before' : 'after'](e);
                    if (this.first != null && this.options.wrap == 'circular' && this.options.size !== null && (j <= 0 || j > this.options.size)) {
                        g = this.get(this.index(j));
                        if (g.length)
                            this.add(j, g.find('>*').clone(true));
                    }
                }
                c = e;
                var d = this.dimension(e);
                if (d == 0) {
                    alert('tickerTape: No width/height set for items. This will cause an infinite loop. Aborting...');
                    return 0;
                }
                if (this.options.wrap != 'circular' && this.options.size !== null && j > this.options.size)
                    cache.push(e);
                else if (p)
                    l += d;
                v += d;
                if (v >= clipping)
                    break; j++;
            }
            for (var x = 0; x < cache.length; x++)
                cache[x].remove();
            if (l > 0) {
                this.list.css(this.wh, this.dimension(this.list) + l + 'px');
                if (back) {
                    pos -= l;
                    this.list.css(this.lt, $tt.intval(this.list.css(this.lt)) - l + 'px');
                }
            }
            var last = i + visible - 1;
            if (this.options.wrap != 'circular' && this.options.size && last > this.options.size)
                last = this.options.size;
            if (j > last) {
                visible = 0, j = last, v = 0; 
                while (++visible) {
                    var e = this.get(j--);
                    if (!e.length)
                        break;
                    v += this.dimension(e);
                    if (v >= clipping) 
                        break;
                }
            }
            var first = last - visible + 1;
            if (this.options.wrap != 'circular' && first < 1)
                first = 1;
            if (this.inTail && back) {
                pos += this.tail;
                this.inTail = false;
            }
            this.tail = null;
            if (this.options.wrap != 'circular' && last == this.options.size && (last - visible + 1) >= 1) {
                var m = $tt.margin(this.get(last), !this.options.vertical ? 'marginRight' : 'marginBottom');
                if ((v - m) > clipping)
                    this.tail = v - clipping - m;
            }
            while (i-- > first)
                pos += this.dimension(this.get(i));
            this.prevFirst = this.first;
            this.prevLast = this.last;
            this.first = first;
            this.last = last;
            return pos;
        },
        animate: function (p, a) {
            if (this.locked || this.animating)
                return;
            this.animating = true;
            var self = this;
            var scrolled = function () {
                self.animating = false;
                if (p == 0)
                    self.list.css(self.lt, 0);
                if (self.options.wrap == 'circular' || self.options.wrap == 'both' || self.options.wrap == 'last' || self.options.size == null || self.last < self.options.size)
                    self.startAuto();
                self.buttons();
                self.notify('onAfterAnimation');
            };
            this.notify('onBeforeAnimation');
            if (!this.options.animation || a == false) {
                this.list.css(this.lt, p + 'px'); scrolled();
            }
            else {
                var o = !this.options.vertical ? { 'left': p} : { 'top': p };
                this.list.animate(o, this.options.animation, this.options.easing, scrolled);
            }
        },
        startAuto: function (s) {
            if (s != undefined)
                this.options.auto = s;
            if (this.options.auto == 0)
                return this.stopAuto();
            if (this.timer != null)
                return;
            var self = this;
            this.timer = setTimeout(function () {
                self.next();
            }, 
            this.options.auto * 1000);
        },
        stopAuto: function () {
            if (this.timer == null)
                return;
            clearTimeout(this.timer);
            this.timer = null;
        },
        buttons: function (n, p) {
            if (n == undefined || n == null) {
                var n = !this.locked && this.options.size !== 0 && ((this.options.wrap && this.options.wrap != 'first') || this.options.size == null || this.last < this.options.size);
                if (!this.locked && (!this.options.wrap || this.options.wrap == 'first') && this.options.size != null && this.last >= this.options.size)
                    n = this.tail != null && !this.inTail;
            }
            if (p == undefined || p == null) {
                var p = !this.locked && this.options.size !== 0 && ((this.options.wrap && this.options.wrap != 'last') || this.first > 1);
                if (!this.locked && (!this.options.wrap || this.options.wrap == 'last') && this.options.size != null && this.first == 1)
                    p = this.tail != null && this.inTail;
            }
            var self = this;
            this.buttonNext[n ? 'bind' : 'unbind'](this.options.buttonNextEvent + '.tickerTape', this.funcNext)[n ? 'removeClass' : 'addClass'](this.className('tickerTape-next-disabled')).attr('disabled', n ? false : true);
            this.buttonPrev[p ? 'bind' : 'unbind'](this.options.buttonPrevEvent + '.tickerTape', this.funcPrev)[p ? 'removeClass' : 'addClass'](this.className('tickerTape-prev-disabled')).attr('disabled', p ? false : true);
            if (this.buttonNext.length > 0 && (this.buttonNext[0].tickerTapestate == undefined || this.buttonNext[0].tickerTapestate != n) && this.options.buttonNextCallback != null) {
                this.buttonNext.each(function () {
                    self.options.buttonNextCallback(self, this, n);
                });
                this.buttonNext[0].tickerTapestate = n;
            }
            if (this.buttonPrev.length > 0 && (this.buttonPrev[0].tickerTapestate == undefined || this.buttonPrev[0].tickerTapestate != p) && this.options.buttonPrevCallback != null) {
                this.buttonPrev.each(function () {
                    self.options.buttonPrevCallback(self, this, p);
                });
                this.buttonPrev[0].tickerTapestate = p;
            }
        },
        notify: function (evt) {
            var state = this.prevFirst == null ? 'init' : (this.prevFirst < this.first ? 'next' : 'prev');
            this.callback('itemLoadCallback', evt, state);
            if (this.prevFirst !== this.first) {
                this.callback('itemFirstInCallback', evt, state, this.first);
                this.callback('itemFirstOutCallback', evt, state, this.prevFirst);
            }
            if (this.prevLast !== this.last) {
                this.callback('itemLastInCallback', evt, state, this.last);
                this.callback('itemLastOutCallback', evt, state, this.prevLast);
            }
            this.callback('itemVisibleInCallback', evt, state, this.first, this.last, this.prevFirst, this.prevLast);
            this.callback('itemVisibleOutCallback', evt, state, this.prevFirst, this.prevLast, this.first, this.last);
        },
        callback: function (cb, evt, state, i1, i2, i3, i4) {
            if (this.options[cb] == undefined || (typeof this.options[cb] != 'object' && evt != 'onAfterAnimation'))
                return;
            var callback = typeof this.options[cb] == 'object' ? this.options[cb][evt] : this.options[cb];
            if (!$.isFunction(callback))
                return;
            var self = this;
            if (i1 === undefined)
                callback(self, state, evt);
            else if (i2 === undefined)
                this.get(i1).each(function () {
                    callback(self, this, i1, state, evt);
                });
            else {
                for (var i = i1; i <= i2; i++)
                    if (i !== null && !(i >= i3 && i <= i4))
                        this.get(i).each(function () {
                            callback(self, this, i, state, evt);
                        });
            }
        },
        create: function (i) {
            return this.format('<li></li>', i);
        },
        format: function (e, i) {
            var $e = $(e).addClass(this.className('tickerTape-item')).addClass(this.className('tickerTape-item-' + i)).css({ 'float': 'left', 'list-style': 'none' });
            $e.attr('tickerTapeindex', i);
            return $e;
        },
        className: function (c) {
            return c + ' ' + c + (!this.options.vertical ? '-horizontal' : '-vertical');
        },
        dimension: function (e, d) {
            var el = e.jquery != undefined ? e[0] : e;
            var old = !this.options.vertical ? el.offsetWidth + $tt.margin(el, 'marginLeft') + $tt.margin(el, 'marginRight') : el.offsetHeight + $tt.margin(el, 'marginTop') + $tt.margin(el, 'marginBottom');
            if (d == undefined || old == d)
                return old;
            var w = !this.options.vertical ? d - $tt.margin(el, 'marginLeft') - $tt.margin(el, 'marginRight') : d - $tt.margin(el, 'marginTop') - $tt.margin(el, 'marginBottom');
            $(el).css(this.wh, w + 'px');
            return this.dimension(el);
        },
        clipping: function () {
            return !this.options.vertical ? this.clip[0].offsetWidth - $tt.intval(this.clip.css('borderLeftWidth')) - $tt.intval(this.clip.css('borderRightWidth')) : this.clip[0].offsetHeight - $tt.intval(this.clip.css('borderTopWidth')) - $tt.intval(this.clip.css('borderBottomWidth'));
        },
        index: function (i, s) {
            if (s == undefined)
                s = this.options.size;
            return Math.round((((i - 1) / s) - Math.floor((i - 1) / s)) * s) + 1; 
        }
    });

    $tt.extend({
        defaults: function (d) {
            return $.extend(defaults, d || {});
        },
        margin: function (e, p) {
            if (!e) return 0;
            var el = e.jquery != undefined ? e[0] : e;
            if (p == 'marginRight' && $.browser.safari) {
                var old = { 'display': 'block', 'float': 'none', 'width': 'auto' },
                oWidth, oWidth2;
                $.swap(el, old, function () {
                    oWidth = el.offsetWidth;
                });
                old['marginRight'] = 0;
                $.swap(el, old, function () {
                    oWidth2 = el.offsetWidth;
                });
                return oWidth2 - oWidth;
            }
            return $tt.intval($.css(el, p));
        },
        intval: function (v) {
            v = parseInt(v);
            return isNaN(v) ? 0 : v;
        } 
    });
})(jQuery);