var currentImage = 0; 
var auto_fade = 0;
var fade;

function fader(imageNumber,opacity) {

			document.getElementById(galleryID[imageNumber]).style.opacity = (opacity/100);
			document.getElementById(galleryID[imageNumber]).style.filter = "alpha(opacity="+opacity+")";
}

function autofadeon2() {
 auto_fade = 1;
 fade = window.setTimeout("autofadeon()", 5000);

}

function autofadeon() {
 auto_fade = 1;
 if (currentImage == (galleryID.length-1)) {crossfade(0);} else {crossfade(currentImage+1);}

}
function autofadeoff() {
 clearTimeout(fade);
 auto_fade = 0;

}

function crossfade(img){
			clearTimeout(fade);
			previousImage = currentImage;
			currentImage = img;
if (previousImage!=currentImage){
			document.getElementById(galleryID[previousImage]).style.zIndex = 10;
			document.getElementById(galleryID[currentImage]).style.zIndex = 20;
			crossfade_single(1)
		}
	if (auto_fade == 1 ) {fade = window.setTimeout("autofadeon()", 5000);}
}


function crossfade_single(opacity) {
		if (opacity < 100) {
			fader(currentImage,opacity);
			opacity += 10;
			window.setTimeout("crossfade_single("+opacity+")", 30);
		} else {
			fader(currentImage,opacity);
			fader(previousImage,0);

		}
}