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){
	
	this.pausecheck = pause;
	this.mouseovercheck = 0;
	this.delay = delay;
	this.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";
	
	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:'+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>');
	}
	
	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="";

	slideHTML+='<img src="'+this.postimages[picindex].src+'" border="'+this.imageborder+'px">';
	slideHTML+='<sub><a href="' + this.theimages[picindex][1] +'" title="Lesen Sie mehr zum Thema &quot;' + this.theimages[picindex][2] + '&quot;">' + this.theimages[picindex][2] + ' &raquo;</a></sub>';
	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=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();
}