/***********************************************
* 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.
*
* Note that this Javascript was modified by David Ameeti for customized usage
***********************************************/
 
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;

//new fadeshow(IMAGES_ARRAY_NAME, IMAGES_BASE, slideshow_width, slideshow_height, borderwidth, delay, pause, random_order)
//borderwidth, if unspecified, defaults to '0'
//delay, if unspecified, defaults to '3000'
//pause, if unspecified, defaults to 'true'
//random_order, if unspecified, defaults to 'true'

//SET IMAGE PATHS. Extend or contract array as needed
//var fadeimages = new Array();
//fadeimages[0] = ["image-1.jpg", "target.php"];
//fadeimages[1] = ["image_2.jpg", "another.php", "_blank"];
//fadeimages[2] = ["image_3.gif"];

//var fadebase = "http://www.thedomainname.com/the_basefor_the_images/";
//new fadeshow(fadeimages, fadebase, 340, 225, 0, 3000, true, true);



function fadeshow(theimages, thebase, fadewidth, fadeheight, borderwidth, delay, pause, random_order) {
	borderwidth = (typeof borderwidth == "undefined" ? 0 : borderwidth);
	this.delay = (typeof delay == "undefined" ? 3000 : delay);
	this.pausecheck = (typeof pause == "undefined" ? true : pause);
	random_order = (typeof random_order == "undefined" ? true : random_order);

	this.mouseovercheck = false;
	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 (random_order)
		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 (var p = 0; p < theimages.length; p++) {
			this.postimages[p] = new Image();
			this.postimages[p].src = thebase + theimages[p][0];
		}
 
	var thefadewidth = fadewidth + this.imageborder * 2;
	var thefadeheight = 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:'+thefadewidth+'px;height:'+thefadeheight+'px;overflow:hidden;"><div id="'+this.canvasbase+'_0" style="position:absolute;width:'+thefadewidth+'px;height:'+thefadeheight+'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:'+thefadewidth+'px;height:'+thefadeheight+'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>');
 
	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] + '"' +
			(this.theimages[picindex][2] ? ' + target="' + this.theimages[picindex][2] + '"' : "") + '>';
	slideHTML += '<img src="' + this.postimages[picindex].src + '" border="' + this.imageborder + 'px"' +
		(this.theimages[picindex][3] ? ' title="' + this.theimages[picindex][3] + '"' : '') + ' />';
	if (this.theimages[picindex][1])		//if associated link exists for image
		slideHTML += '</a>';
	picobj.innerHTML = slideHTML;
}
 
 
fadeshow.prototype.rotateimage = function() {
	if (this.pausecheck)		//if pause onMouseover enabled, cache object
		var cacheobj = this;
	if (this.mouseovercheck)
		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) {						//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 = true};
		crossobjcontainer.onmouseout = function() {cacheobj.mouseovercheck = false};
	}
	this.rotateimage();
}
