/***********************************************
* Ultimate Fade-In Slideshow (v1.51): © Dynamic Drive (http://www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
***********************************************/


//var fadeimages2=new Array() //2nd array set example. Remove or add more sets as needed.
//SET IMAGE PATHS. Extend or contract array as needed
//fadeimages2[0]=["photo1.jpg", "", ""] //plain image syntax
//fadeimages2[1]=["photo2.jpg", "http://www.cssdrive.com", ""] //image with link syntax
//fadeimages2[2]=["photo3.jpg", "http://www.javascriptkit.com", "_new"] //image with link and target syntax

var fadebgcolor = "white";

////NO need to edit beyond here/////////////
// PGL: Says you... formatted because this was a wreck.

var fadearray = new Array(); //array to cache fadeshow instances
var fadeclear = new Array(); //array to cache corresponding clearinterval pointers

var dom = (document.getElementById); //modern dom browsers
var iebrowser = document.all;

function fadeshow (theimages, fadewidth, fadeheight, borderwidth, delay, pause, displayorder) {
    this.pausecheck = pause;
    this.mouseovercheck = 0;
    this.delay = delay;
    this.degree = 10; //initial opacity degree (10%)
    this.curimageindex = 0;
    this.nextimageindex = 1;
    fadearray[fadearray.length] = this;
    this.slideshowid = fadearray.length - 1;
    this.canvasbase = "canvas"+this.slideshowid;
    this.curcanvas = this.canvasbase+"_0";
    if (typeof displayorder != "undefined") {
        theimages.sort(function() {return 0.5 - Math.random();}); //thanks to Mike (aka Mwinter) :)
    }

    this.theimages = theimages;
    this.imageborder = parseInt(borderwidth);
    this.postimages = new Array(); //preload images
    for (p=0; p<theimages.length; p++) {
        this.postimages[p] = new Image();
        this.postimages[p].src = theimages[p][0];
    }

    var fadewidth = fadewidth + this.imageborder * 2;
    var fadeheight = fadeheight + this.imageborder * 2;

    // PGL: Not following this logic... with the "|| dom", isn't the first boolean check useless?
    if (iebrowser&&dom||dom) { //if IE5+ or modern browsers (ie: Firefox)
        document.write('<div id="master'+this.slideshowid+'" style="position:relative;width:'+fadewidth+'px;height:'+fadeheight+'px;overflow:hidden;"><div id="'+this.canvasbase+'_0" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div><div id="'+this.canvasbase+'_1" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div></div>');
    }
    else {
        document.write('<div><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'"></div>');
    }

    // PGL: Not following this logic... with the "|| dom", isn't the first boolean check useless?
    //      Also makes no sense why all this wasn't done above... it's the same damn check
    if (iebrowser&&dom||dom) { //if IE5+ or modern browsers such as Firefox
        this.startit();
    }
    else {
        this.curimageindex++;
        setInterval("fadearray["+this.slideshowid+"].rotateimage()", this.delay);
    }
}

function fadepic (obj) {
    if (obj.degree < 100) {
        obj.degree += 10;

        if (obj.tempobj.filters && obj.tempobj.filters[0]) {
            if (typeof obj.tempobj.filters[0].opacity == "number") { //if IE6+
                obj.tempobj.filters[0].opacity = obj.degree;
            }
            else { //else if IE5.5-
                obj.tempobj.style.filter = "alpha(opacity="+obj.degree+")";
            }
        }
        else if (obj.tempobj.style.MozOpacity) {
            obj.tempobj.style.MozOpacity = obj.degree / 101;
        }
        else if (obj.tempobj.style.KhtmlOpacity) {
            obj.tempobj.style.KhtmlOpacity = obj.degree / 100;
        }
        else if (obj.tempobj.style.opacity && !obj.tempobj.filters) {
            obj.tempobj.style.opacity = obj.degree / 101;
        }
    }
    else {
        clearInterval(fadeclear[obj.slideshowid]);
        obj.nextcanvas = (obj.curcanvas == obj.canvasbase+"_0") ? obj.canvasbase+"_0" : obj.canvasbase+"_1";
        obj.tempobj = iebrowser ? iebrowser[obj.nextcanvas] : document.getElementById(obj.nextcanvas);
        obj.populateslide(obj.tempobj, obj.nextimageindex);
        obj.nextimageindex = (obj.nextimageindex < obj.postimages.length - 1) ? obj.nextimageindex + 1 : 0;
        setTimeout("fadearray["+obj.slideshowid+"].rotateimage()", obj.delay);
    }
}

fadeshow.prototype.populateslide = function (picobj, picindex) {
    var slideHTML="";

    if (this.theimages[picindex][1] != "") { //if associated link exists for image
        slideHTML='<a href="'+this.theimages[picindex][1]+'" target="'+this.theimages[picindex][2]+'">';
    }
    slideHTML += '<img src="'+this.postimages[picindex].src+'" border="'+this.imageborder+'px">';

    if (this.theimages[picindex][1] != "") { //if associated link exists for image
        slideHTML += '</a>';
    }
    picobj.innerHTML = slideHTML;
}


fadeshow.prototype.rotateimage = function () {

    if (this.pausecheck == 1) { //if pause onMouseover enabled, cache object
        var cacheobj = this;
    }

    if (this.mouseovercheck == 1) {
        setTimeout(function(){cacheobj.rotateimage()}, 100);
    }
    // PGL: Not following this logic... with the "|| dom", isn't the first boolean check useless?
    else if (iebrowser&&dom||dom) {
        this.resetit();

        // PGL: This doesn't look right, most likely a typo where "==" was intended.
        //      Possibly corrected line commented below:
        //var crossobj = (this.tempobj == iebrowser) ? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
        var crossobj = this.tempobj = iebrowser ? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
        crossobj.style.zIndex++;
        fadeclear[this.slideshowid] = setInterval("fadepic(fadearray["+this.slideshowid+"])",50);
        this.curcanvas = (this.curcanvas == this.canvasbase+"_0")? this.canvasbase+"_1" : this.canvasbase+"_0";
    }
    else {
        var ns4imgobj = document.images['defaultslide'+this.slideshowid];
        ns4imgobj.src = this.postimages[this.curimageindex].src;
    }

    this.curimageindex = (this.curimageindex < this.postimages.length - 1) ? this.curimageindex + 1 : 0;
}

fadeshow.prototype.resetit = function() {
    this.degree = 10;
    var crossobj = iebrowser ? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);

    if (crossobj.filters&&crossobj.filters[0]) {
        if (typeof crossobj.filters[0].opacity == "number") { //if IE6+
            crossobj.filters(0).opacity = this.degree;
        }
        else { //else if IE5.5-
            crossobj.style.filter = "alpha(opacity="+this.degree+")";
        }
    }
    else if (crossobj.style.MozOpacity) {
        crossobj.style.MozOpacity = this.degree / 101;
    }
    else if (crossobj.style.KhtmlOpacity) {
        crossobj.style.KhtmlOpacity = this.degree / 100;
    }
    else if (crossobj.style.opacity && !crossobj.filters) {
        crossobj.style.opacity = this.degree / 101;
    }
}

fadeshow.prototype.startit = function() {
    var crossobj = iebrowser ? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
    this.populateslide(crossobj, this.curimageindex);

    if (this.pausecheck == 1) { //IF SLIDESHOW SHOULD PAUSE ONMOUSEOVER
        var cacheobj = this;
        var crossobjcontainer = iebrowser ? iebrowser["master"+this.slideshowid] : document.getElementById("master"+this.slideshowid);
        crossobjcontainer.onmouseover = function(){cacheobj.mouseovercheck = 1};
        crossobjcontainer.onmouseout = function(){cacheobj.mouseovercheck = 0};
    }
    this.rotateimage();
}

/***************** End slide show script *************/