//Slideshow control - pix change on click

var slides = new Array('slideshow1','slideshow2','slideshow3','slideshow4');
	var i=0; var wait = 4000;    // interval and time in milliseconds
	var  currentslidenum=0;
	
	function start_slideshow() {
		setInterval("slideShow()", wait);  // This is a javascript function which acts as a timer.
	}

    function slideShow() {

		Effect.Fade(slides[i], { duration:1, from:1.0, to:0.0 });
    	i++;
    	if (i == 3) i = 0;
    	Effect.Appear(slides[i], { duration:1, from:0.0, to:1.0 });
		
	}
	
	function change_slide(startslidenum,endslidenum) {
		if (startslidenum !== endslidenum) {
		//var currentslide = getCurrentSlide();
		//alert (currentslide+", "+slides[currentslide]);
		$(slides[startslidenum]).style.display = 'none';
		Effect.Fade(slides[startslidenum], { duration:1, from:1.0, to:0.0 });
		//if (index == 3) index = 0;
    	Effect.Appear(slides[endslidenum], { duration:1, from:0.0, to:1.0 });
		currentslidenum=endslidenum;
		//alert (index+", "+slides[index]);
		}
	}
	
	function getCurrentSlide() {
		
		//alert (slides[counter]+", "+document.getElementById(slides[counter]).style.display);
		//}
		//}
		return currentslidenum;
	}