window.addEvent('domready', function() {
	
	var imgBig = $$('div#col2_content img');
	var imgCaption = $$('div#col2_content dd');	
	var allImgBig = imgBig.length;
	var zIndex = allImgBig;
	var end = allImgBig -1;
	var i = 0;
	
	if (imgCaption[0]) {
		imgCaption[0].addClass('cur');
	};
	
	// setting z-index for all images
	for (y=0; y<allImgBig; y++) {
		imgBig[y].setStyle('z-index',String(zIndex));
		zIndex --;
	};
	
	for (y=1; y<allImgBig; y++) {
		imgBig[y].setStyle('opacity','0');
	};
	
	imgBig[0].setStyle('visibility','visible');

	
	//var slideshow = function(){

		// next index of img array, 0 if end of array
		//nextIndex = (i+1) % end;

		// fade big image
		/*
		if(imgBig[i]){
			imgBig[i].fade('out');
			imgBig[nextIndex].fade('in');
		}
		*/
		// fade thumbnail
		/*
		if (imgThumb[i]) {
			imgThumb[i].fade(1);
			imgThumb[nextIndex].fade(0.3);
		}
		*/
		// counter var for next loop
		//i = nextIndex;
	//}
	
	var myFunc = function(){
		
		if (i == end){
			nextIndex = 0;
		} else{
			nextIndex = i+1;
		}
		
		if(imgBig[i]){
			imgBig[i].fade('out');
			imgBig[nextIndex].fade('in');
		}
		
		if(imgCaption[i]){
			imgCaption[i].removeClass('cur')
			imgCaption[nextIndex].addClass('cur')
		}
		
		i=nextIndex;

	}
	myFunc.periodical(5000);
	
	//slideshow.periodical(5000);
});