/***********************************************
* 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.
* Usage in html: new fadeshow(IMAGES_ARRAY_NAME, slideshow_width, slideshow_height, borderwidth, delay, pause (0=no, 1=yes), optionalRandomOrder)
***********************************************/

//SET IMAGE PATHS. Extend or contract array as needed
//faderimages[0]=["photo1.jpg", "", ""] //plain image syntax
//faderimages[1]=["photo2.jpg", "http://www.cssdrive.com", ""] //image with link syntax
//faderimages[2]=["photo3.jpg", "http://www.javascriptkit.com", "_new"] //image with link and target syntax

//SET IMAGE CONSTANTS
// var faderwidth = 200
// var faderheight = 300
var faderborder = 0
var faderdelay = 3000
var faderpause = 1
var faderorder = "R"
var faderbg = "white"

////NO need to edit beyond here/////////////

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() {

	var theimages = faderimages
	var fadewidth = faderwidth
	var fadeheight = faderheight
	var borderwidth = faderborder
	var delay = faderdelay
	var pause = faderpause
	var displayorder = faderorder

	this.pausecheck = pause
	this.mouseovercheck = 0
	this.delay = delay
	this.degree = 5 //initial opacity degree (5%)
	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

	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:'+faderbg+'"></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:'+faderbg+'"></div></div>')
	else
		document.write('<div><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'" style="max-width:'+faderwidth+'px"></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 += 5 // opacity step
		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" style="max-width:'+faderwidth+'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)
	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 = 5
	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()
}