var fadebgcolor = "white";

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 (displayorder)
		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].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;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);-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);-moz-opacity:10;background-color:'+fadebgcolor+'"></div></div>');
	else
		document.write('<div><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'"></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{
		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" alt="' + this.postimages[picindex].alt + '" title="' + this.postimages[picindex].alt + '">';
	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);
	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 = obj.degree/100;
}

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();
}