Slideshow = new Class({
    initialize: function (slideshow, props) {
        this.props = $extend({
            captions: false,
            classes: ['prev', 'next', 'active'],
            duration: [1000, 1000],
            height: false,
            hu: '/',
            images: [],
            navigation: false,
            pan: 100,
            resize: true,
            thumbnailre: [/\./, 't.'],
            transition: Fx.Transitions.sineInOut,
            type: 'fade',
            width: false,
            zoom: 50
        }, props || {});
        if (this.props.images.length <= 1) {
            return
        }
        if (this.props.pan != 'rand') {
            if (isNaN(this.props.pan.toInt()) || this.props.pan.toInt() < 0 || this.props.pan.toInt() > 100) {
                this.props.pan = 0
            }
        }
        if (this.props.zoom != 'rand') {
            if (isNaN(this.props.zoom.toInt()) || this.props.zoom.toInt() < 0 || this.props.zoom.toInt() > 100) {
                this.props.zoom = 0
            }
        }
        this.slideshow = $(slideshow);
        this.a = img = this.slideshow.getElement('img');
        this.fx = [];
        this.start()
    },
    start: function () {
        this.slideshow.setHTML('');
        this.a.setStyles({
            display: 'block',
            position: 'absolute',
            left: '0px',
            top: '0px',
            zIndex: 1
        });
        this.a.injectInside(this.slideshow);
        this.fx.each(function (fx) {
            fx.time = fx.options.duration = 0;
            fx.stop(true)
        });
        obj = this.a.getCoordinates();
        this.height = ((this.props.height) ? this.props.height : obj['height']);
        this.width = ((this.props.width) ? this.props.width : obj['width']);
        this.slideshow.setStyles({
            display: 'block',
            position: 'relative',
            width: this.width + 'px'
        });
        this.div = new Element('div');
        this.div.setStyles({
            display: 'block',
            height: (this.height + 'px'),
            overflow: 'hidden',
            position: 'relative',
            width: (this.width + 'px')
        });
        this.div.injectInside(this.slideshow);
        this.a.injectInside(this.div);
        if ((this.props.height || this.props.width) && this.props.resize) {
            /* ***BROCELIA****
        	dh = this.height / obj['height'];
            dw = this.width / obj['width'];
            /* ****BROCELIA**** */
        	
        	if( obj['height'] != 0)
        		dh = this.height / obj['height'];
        	else 
        		dh =0;
        	if( obj['width'] != 0)
        		dw = this.width / obj['width'];
        	else
        		dw  = 0;

            
            /* **** /BROCELIA**** */
            n = (dw > dh) ? dw : dh;
            this.a.setStyles({
                height: Math.ceil(obj['height'] * n) + 'px',
                width: Math.ceil(obj['width'] * n) + 'px'
            })
        }
        this.b = this.a.clone();
        this.b.setStyle('opacity', 0);
        this.b.injectAfter(this.a);
        if (this.props.navigation) {
            this.navigation()
        }
        if ($type(this.props.captions) == 'array') {
            this.p = new Element('p');
            this.p.setHTML(this.props.captions[0]);
            this.p.injectInside(this.slideshow)
        }
        this.direction = 'left';
        this.curr = [1, 1];
        this.timer = (this.timer) ? [0] : [(new Date).getTime() + this.props.duration[1], 0];
    
        this.loader = new Image();
        this.loader.src =  this.props.images[this.curr[0]].src;
        this.preload()
    },
    preload: function (fast) {
        if (this.loader.complete && ((new Date).getTime() > this.timer[0])) {
            img = (this.curr[1] % 2) ? this.b : this.a;
            img.setStyles({
                height: 'auto',
                opacity: 0,
                width: 'auto',
                zIndex: this.curr[1]
            });
            img.setProperty('src', this.loader.src);
            dh = this.height / this.loader.height;
            dw = this.width / this.loader.width;
            n = (dw > dh) ? dw : dh;
            if (this.props.resize) {
                img.setStyles({
                    height: Math.ceil(this.loader.height * n) + 'px',
                    width: Math.ceil(this.loader.width * n) + 'px'
                })
            }
            if (fast) {
                img.setStyles({
                    left: '0px',
                    opacity: 1,
                    top: '0px'
                });
                if ($type(this.props.captions) == 'array') {
                    this.p.setHTML(this.props.captions[this.curr[0]]).setStyle('opacity', 1)
                }
                return this.loaded()
            }
            this.fx = [];
            if ($type(this.props.captions) == 'array') {
                fn = function (i) {
                    if (this.props.captions[i]) {
                        this.p.setHTML(this.props.captions[i])
                    }
                    fx = new Fx.Style(this.p, 'opacity');
                    fx.start(0, 1);
                    this.fx.push(fx)
                }.pass(this.curr[0], this);
                fx = new Fx.Style(this.p, 'opacity', {
                    onComplete: fn
                });
                fx.start(1, 0);
                this.fx.push(fx)
            }
            if (this.props.type.test(/push|wipe/)) {
                img.setStyles({
                    left: 'auto',
                    right: 'auto'
                });
                img.setStyle(this.direction, this.width + 'px');
                img.setStyle('opacity', 1);
                if (this.props.type == 'wipe') {
                    fx = new Fx.Style(img, this.direction, {
                        duration: this.props.duration[0],
                        transition: this.props.transition
                    });
                    fx.start(this.width, 0);
                    this.fx.push(fx)
                } else {
                    arr = [img, ((this.curr[1] % 2) ? this.a : this.b)];
                    p0 = {};
                    p0[this.direction] = [this.width, 0];
                    p1 = {};
                    p1[this.direction] = [0, (this.width * -1)];
                    if (arr[1].getStyle(this.direction) == 'auto') {
                        x = this.width - arr[1].getStyle('width').toInt();
                        arr[1].setStyle(this.direction, x + 'px');
                        arr[1].setStyle(((this.direction == 'left') ? 'right' : 'left'), 'auto');
                        p1[this.direction] = [x, (this.width * -1)]
                    }
                    fx = new Fx.Elements(arr, {
                        duration: this.props.duration[0],
                        transition: this.props.transition
                    });
                    fx.start({
                        '0': p0,
                        '1': p1
                    });
                    this.fx.push(fx)
                }
            } else {
                img.setStyles({
                    bottom: 'auto',
                    left: 'auto',
                    right: 'auto',
                    top: 'auto'
                });
                arr = ['left top', 'right top', 'left bottom', 'right bottom'][this.curr[1] % 4].split(' ');
                arr.each(function (p) {
                    img.setStyle(p, 0)
                });
                zoom = ((this.props.type).test(/zoom|combo/)) ? this.zoom() : {};
                pan = ((this.props.type).test(/pan|combo/)) ? this.pan() : {};
                fx = new Fx.Style(img, 'opacity', {
                    duration: this.props.duration[0]
                });
                fx.start(0, 1);
                this.fx.push(fx);
                fx = new Fx.Styles(img, {
                    duration: (this.props.duration[0] + this.props.duration[1]),
                    transition: Fx.Transitions.linear
                });
                fx.start($extend(zoom, pan));
                this.fx.push(fx)
            }
            this.loaded()
        } else {
            this.timeout = this.preload.delay(100, this)
        }
    },
    loaded: function () {
        if (this.ul) {
            anchors = $$('a[name]', this.ul);
            anchors.each(function (a, i) {
                if (i == this.curr[0]) {
                    a.addClass(this.props.classes[2])
                } else {
                    a.removeClass(this.props.classes[2])
                }
            }, this)
        }
        this.direction = 'left';
        this.curr[0] = (this.curr[0] == this.props.images.length - 1) ? 0 : this.curr[0] + 1;
        this.curr[1]++;
        this.timer[0] = (new Date).getTime() + this.props.duration[1] + ((this.props.type.test(/fade|push|wipe/)) ? this.props.duration[0] : 0);
        this.timer[1] = (new Date).getTime() + this.props.duration[0];
        this.loader = new Image();
        this.loader.src = this.props.images[this.curr[0]].src;
        this.preload()
    },
    zoom: function () {
        z = (this.props.zoom == 'rand') ? Math.random() + 1 : (this.props.zoom.toInt() / 100.0) + 1;
        eh = Math.ceil(this.loader.height * n);
        ew = Math.ceil(this.loader.width * n);
        sh = parseInt(eh * z);
        sw = parseInt(ew * z);
        return {
            height: [sh, eh],
            width: [sw, ew]
        }
    },
    pan: function () {
        p = (this.props.pan == 'rand') ? Math.random() : Math.abs((this.props.pan.toInt() / 100.0) - 1);
        ex = (this.width - img.width);
        ey = (this.height - img.height);
        sx = parseInt(ex * p);
        sy = parseInt(ey * p);
        obj = {};
        if (dw > dh) {
            obj[arr[1]] = [sy, ey]
        } else {
            obj[arr[0]] = [sx, ex]
        }
        return obj
    },
    navigation: function () {
        this.ul = new Element('ul');
        if (this.props.navigation.test(/arrows/)) {
            li = new Element('li');
            a = new Element('a');
            a.addClass(this.props.classes[0]);
            a.onclick = function () {
                if (this.props.navigation.test(/fast/) || (new Date).getTime() > this.timer[1]) {
                    $clear(this.timeout);
                    if (this.props.navigation.test(/fast/)) {
                        this.fx.each(function (fx) {
                            fx.time = fx.options.duration = 0;
                            fx.stop(true)
                        })
                    }
                    this.direction = 'right';
                    this.curr[0] = (this.curr[0] < 2) ? this.props.images.length - (2 - this.curr[0]) : this.curr[0] - 2;
                    this.timer = [0];
                    this.loader = new Image();
                    this.loader.src = this.props.images[this.curr[0]].src;
                    this.preload(this.props.navigation.test(/fast/))
                }
            }.bind(this);
            a.injectInside(li);
            li.injectInside(this.ul)
        }
        if (this.props.navigation.test(/arrows\+|thumbnails/)) {
            for (i = 0; i < this.props.images.length; i++) {
                li = new Element('li');
                a = new Element('a');
                a.setProperty('name', i);
                if (this.props.navigation.test(/thumbnails/)) {
                    src =  this.props.images[i].src.replace(this.props.thumbnailre[0], this.props.thumbnailre[1]);
                    a.setStyle('background-image', 'url(' + src + ')')
                }
                if (i == 0) {
                    a.className = this.props.classes[2]
                }
                a.onclick = function (i) {
                    if (this.props.navigation.test(/fast/) || (new Date).getTime() > this.timer[1]) {
                        $clear(this.timeout);
                        if (this.props.navigation.test(/fast/)) {
                            this.fx.each(function (fx) {
                                fx.time = fx.options.duration = 0;
                                fx.stop(true)
                            })
                        }
                        this.direction = (i < this.curr[0] || this.curr[0] == 0) ? 'right' : 'left';
                        this.curr[0] = i;
                        this.timer = [0];
                        this.loader = new Image();
                        this.loader.src =  this.props.images[this.curr[0]].src;
                        this.preload(this.props.navigation.test(/fast/))
                    }
                }.pass(i, this);
                a.injectInside(li);
                li.injectInside(this.ul)
            }
        }
        if (this.props.navigation.test(/arrows/)) {
            li = new Element('li');
            a = new Element('a');
            a.addClass(this.props.classes[1]);
            a.onclick = function () {
                if (this.props.navigation.test(/fast/) || (new Date).getTime() > this.timer[1]) {
                    $clear(this.timeout);
                    if (this.props.navigation.test(/fast/)) {
                        this.fx.each(function (fx) {
                            fx.time = fx.options.duration = 0;
                            fx.stop(true)
                        })
                    }
                    this.timer = [0];
                    this.preload(this.props.navigation.test(/fast/))
                }
            }.bind(this);
            a.injectInside(li);
            li.injectInside(this.ul)
        }
        this.ul.injectInside(this.slideshow)
    }
});