var timedSlideShow = Class.create();
timedSlideShow.prototype = {
        initialize: function(element, data) {
                this.currentIter = 0;
                this.lastIter = 0;
                this.maxIter = 0;
                this.slideShowElement = element;
                this.slideShowData = data;
                this.slideShowInit = 1;
                this.slideElements = Array();
                this.slideShowDelay = 6000;
                element.style.display="block";
                this.articleLink = document.createElement('a');
                this.articleLink.className = 'global';
                element.appendChild(this.articleLink);
                this.maxIter = data.length;
                for(i=0;i<data.length;i++)
                {
                        var currentImg = document.createElement('div');
                        currentImg.className = "slideElement";
                        currentImg.style.position="absolute";
                        currentImg.style.left="0px";
                        currentImg.style.top="0px";
                        currentImg.style.backgroundImage="url('" + data[i][0] + "')";
                        currentImg.style.backgroundPosition="center center";
                        this.articleLink.appendChild(currentImg);
                        currentImg.currentOpacity = new fx.Opacity(currentImg, {duration: 600});
                        currentImg.currentOpacity.set(0);
                        this.slideElements[parseInt(i)] = currentImg;
                }
                this.loadingElement = document.createElement('div');
                this.loadingElement.className = 'loadingElement';
                this.articleLink.appendChild(this.loadingElement);
                this.slideInfoZone = document.createElement('div');
                this.slideInfoZone.className = 'slideInfoZone';
                this.articleLink.appendChild(this.slideInfoZone);
                this.doSlideShow();
        },
        startSlideShow: function() {
                this.lastIter = this.maxIter - 1;
                this.currentIter = 0;
                this.slideShowInit = 0;
                this.slideElements[parseInt(this.currentIter)].currentOpacity.set(1);
                setTimeout(this.showInfoSlideShow.bind(this),1000);
                setTimeout(this.nextSlideShow.bind(this),this.slideShowDelay);
        },
        nextSlideShow: function() {
                this.lastIter = this.currentIter;
                this.currentIter++;
                if (this.currentIter >= this.maxIter)
                {
                        this.currentIter = 0;
                        this.lastIter = this.maxIter - 1;
                }
                this.slideShowInit = 0;
                this.doSlideShow.bind(this)();
        },
        doSlideShow: function() {
                if (this.slideShowInit == 1)
                {
                        imgPreloader = new Image();
                        imgPreloader.onload=function(){
                                setTimeout(this.startSlideShow.bind(this),10);
                        }.bind(this);
                        imgPreloader.src = this.slideShowData[0][0];
                } else {
                        if (this.currentIter != 0) {
                                this.slideElements[parseInt(this.currentIter)].currentOpacity.options.onComplete = function() {
                                        this.slideElements[parseInt(this.lastIter)].currentOpacity.set(0);
                                }.bind(this);
                                this.slideElements[parseInt(this.currentIter)].currentOpacity.custom(0, 1);
                        } else {
                                this.slideElements[parseInt(this.currentIter)].currentOpacity.set(1);
                                this.slideElements[parseInt(this.lastIter)].currentOpacity.custom(1, 0);
                        }
                        setTimeout(this.showInfoSlideShow.bind(this),100);
                        setTimeout(this.nextSlideShow.bind(this),this.slideShowDelay);
                }
        },
        showInfoSlideShow: function() {
                this.slideInfoZone = document.createElement('div');
                this.articleLink.appendChild(this.slideInfoZone);
                this.articleLink.href = this.slideShowData[this.currentIter][1];
                this.articleLink.target = this.slideShowData[this.currentIter][4];
                this.articleLink.onmouseover = function(){window.status = ''; return true;};
                this.slideInfoZone.className = 'slideInfoZone';
        }
};
function addLoadEvent(func) {
        var oldonload = window.onload;
        if (typeof window.onload != 'function') {
                window.onload = func;
        } else {
                window.onload = function() {
                        oldonload();
                        func();
                }
        }
}