var images = new Array('image-0','image-1','image-2','image-3','image-4','image-5');
		
		var timeout, numImages, nextImage;
		var interval = 5;
		var onImage = 0;
		var chosen = false;
		var initialised = false;
		
		function setMain(n)
		{
			for (i = 0; i < numImages; i++)
			{
				if ($(images[i])) $(images[i]).style.display = 'none';
			}
			
			//$(images[onImage]).style.display = 'none';
			Effect.Appear($(images[n]), { duration: 0.5 });
			
			//new Effect.Opacity($('ss-image-caption-container'), { from: 0, to: 0.5, duration: 0.5});	
			
			onImage = n;			
		}
		
		function chooseOn(n)
		{
			if (!initialised) return false;
			
			if (n != onImage)
			{
				// unhighlight current image
				new Effect.Opacity($(thumbs[onImage]), { from: 0.5, to: 1, duration: 0.5});	
				
				chosen = true;
				//clearTimeout(timeout);
				timeout.stop();
				new Effect.Opacity($(thumbs[n]), { from: 1.0, to: 0.5, duration: 0.5});
				setMain(n);
			}
			else
			{
				chosen = true;
				timeout.stop();
			}
		}
		
		function chooseOff(n)
		{
			if (!initialised) return false;
			
			if (chosen)
			{
				chosen = false;
				new Effect.Opacity($(thumbs[n]), { from: 0.5, to: 1, duration: 0.5});
							
				timeout = new PeriodicalExecuter(cycle, interval);
			}
			else
			{
				chosen = false;
				timeout = new PeriodicalExecuter(cycle, interval);
			}
		}
		
		function cycle()
		{
			
			// next image
			if (nextImage == numImages - 1)
			{
				nextImage = 0;
			}
			else
			{
				nextImage++;
			}
			
			
			setMain(nextImage);
			
		}
		
		function init()
		{
			numImages = images.length;
			
			onImage = 0;
			nextImage = 0; 
			
			//new Effect.Opacity($('ss-image-caption-container'), { from: 0, to: 0, duration: 0.5});	
			
			// start			
			//timeout = setTimeout("cycle()", interval);
			timeout = new PeriodicalExecuter(cycle, interval);
			
			initialised = true;
		}
		
		window.onload = init;