delay = 4200;
mouseOver = false;
imageNumber = 2;

function setMouseOver(bool) {
	mouseOver = bool;
}
	
function nextImage() {
	if(!mouseOver) {
		switchActive(imageNumber);
	if (!prv_id){
		prv_id = imageNumber;
	}
    	document.getElementById("visual").style.backgroundImage = 'url('+images[prv_id].src+')';
		imageNumber++;
		checkImageNumber(); 
		/*document.slideshow.src = images[imageNumber].src;*/ 
	}
	window.setTimeout('nextImage()', delay);
}


function fadeIn(id, startfade, endfade)
	{
	timer = 0;
	if (startfade < endfade)
		{
		for (i = startfade; i <= endfade; i++)
			{
			setTimeout("setOpacity(" + i + ",'" + id + "')", (timer * 20));
			timer++;
			}
		}
	}

function fadeOut(id, startfade, endfade)
	{
	timer = 0;
	if (startfade < endfade)
		{
		for (i = startfade; i >= endfade; i--)
			{
			setTimeout("setOpacity(" + i + ",'" + id + "')", (timer * 20));
			timer++;
			}
		}
	}
function setOpacity(opacity, id)
	{
	var el = document.getElementById(id).style;
	el.opacity = (opacity / 100);
	el.MozOpacity = (opacity / 100);
	el.KhtmlOpacity = (opacity / 100);
	el.filter = "alpha(opacity=" + opacity + ")";
	}