var fadebgcolor = "white"
var timeout = null
var currentimage = 0;

//new fading carousel
function beginFadingShow(show){
    timeout = setTimeout(fadeCarousel, show.delay);
}

function fadeCarousel(){
    currentimage++;
    
    if (currentimage >= fadingshow.theimages.length) {
        currentimage = 0;
    }
    
    fadeTo(currentimage, true);
    
    clearTimeout(timeout);
    
    timeout = setTimeout(fadeCarousel, fadingshow.delay);
}

function clickFadeTo(id){

    if (typeof fadingshow != "undefined") {
    
        if (id < fadingshow.theimages.length) {
        
        
            currentimage = id;
            fadeTo(id, false);
            clearTimeout(timeout);
            timeout = setTimeout(fadeCarousel, fadingshow.delay + 5000);
            
        }
        
    }
}


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 fadeTo( id, advanceControlsByOne ){

    //this.nextimageindex=id+
    fadingshow.populateslide(fadingshow.tempobj, id)
    fadingshow.rotateimage( advanceControlsByOne );
    
    if (document.getElementById('imageHref')) {
    
        if (fadingshow.theimages[id][1]) {
            document.getElementById('imageHref').href = fadingshow.theimages[id][1];
        }
        else {
            document.getElementById('imageHref').href = "#";
        }
        
    }
    
    
}

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]
        this.postimages[p].thelink = theimages[p][1]
        this.postimages[p].alt = theimages[p][3]
    }
    
    var fadewidth = fadewidth + this.imageborder * 2
    var fadeheight = fadeheight + this.imageborder * 2
    
    if (iebrowser && dom || dom) //if IE5+ or modern browsers (ie: Firefox)
        document.write('<div id="master' + this.slideshowid + '" style="position:relative;z-index:100;width:' + fadewidth + 'px;height:' + fadeheight + 'px;overflow:hidden;background:#000;"><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:10;-khtml-opacity:10;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 + '" alt="' + this.postimages[0].alt + '"></div>')
    
    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.postimages[picindex].thelink != "") //if associated link exists for image
    {
        slideHTML += '<a href="' + this.postimages[picindex].thelink + '" >';
    }
    
    slideHTML += '<img src="' + this.postimages[picindex].src + '" alt="' + this.postimages[picindex].alt + '" border="' + this.imageborder + 'px">'
    
    if (this.postimages[picindex].thelink != "") //if associated link exists for image
    {
        slideHTML += '</a>';
    }
    
    picobj.innerHTML = slideHTML
    
}


fadeshow.prototype.rotateimage = function( advanceControlsByOne ){

    if (document.getElementById('imageHref')) {
    
        if (this.postimages[this.curimageindex].thelink) {
            document.getElementById('imageHref').href = this.postimages[this.curimageindex].thelink;
        }
        else {
            document.getElementById('imageHref').href = "#";
        }
        
        if ( advanceControlsByOne ) {
			var i = 0;
	        while (i < this.postimages.length) {
	            document.getElementById('homeImageControl' + i).src = baseHref + 'images/layup/' + siteFolder + '/mainImageBtnNonActive.png';
	            i = i + 1;
	        }
	        document.getElementById('homeImageControl' + this.curimageindex).src = baseHref + 'images/layup/' + siteFolder + '/mainImageBtnActive.png';
		}
        
    }
    
    if (this.pausecheck == 1) //if pause onMouseover enabled, cache object
        var cacheobj = this
    if (this.mouseovercheck == 1) 
        setTimeout(function(){
            cacheobj.rotateimage()
        }, 100)
    else 
        if (iebrowser && dom || dom) {
            this.resetit()
            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()
}