var fade_timer = null;


var imgArr = new Array("banners/banner.jpg","banners/banner_hombre.jpg");

var imgArr_henne = imgArr;
var imgArr_honom = imgArr;
var imgArr_barnen = imgArr; 

var randNr = rand(imgArr.length) - 1; 

function rand(n) { 
  return (Math.floor(Math.random() * n + 1));
}

if(document.images) {  
	img0 = new Image(925, 271);
	img0.src = imgArr[0];
	img1 = new Image(925, 271);
	img1.src = imgArr[1];
	img2 = new Image(925, 271);
	img2.src = imgArr[2];
	img3 = new Image(925, 271);
	img3.src = imgArr[3];
	img4 = new Image(925, 271);
	img4.src = imgArr[4];
	img5 = new Image(925, 271);
	img5.src = imgArr[5];
}

function fIn(id, startfade, endfade, n) {
	clearTimeout(fade_timer);
	timer = 0;
	for (i = startfade; i <= endfade; i++) {
		fade_timer = setTimeout("setOp('" + id + "', " + i + ", " + endfade + ", 'in', "+ n +")", (timer * 10));
		timer++;
	}
}

 
function fOut(id, startfade, endfade, n) {
	clearTimeout(fade_timer);
	timer = 0;
	for (i = startfade; i >= endfade; i--) {
		fade_timer = setTimeout("setOp('" + id + "', " + i + ", " + endfade + ", 'out', "+ n +")", (timer * 10));
		timer++;
	}
}

function setOp(id, opacity, endfade, direction, n) {
	var ret = false;
	el = document.getElementById(id).style;
	el.opacity = (opacity / 100);
	el.MozOpacity = (opacity / 100);
	el.KhtmlOpacity = (opacity / 100);
	el.filter = "alpha(opacity=" + opacity + ")";
	el.visibility = "visible";
	if(opacity == endfade) {
		if(direction == "in") {
			setTimeout("fOut('" + id + "', 100, 0, " + n + ")", 7000);
			return true;
		} else if(direction == "out") {
			n++;
			headerImg(id, n);
			return true;
		}
	}
}
 
function headerImg(id, n) {
	if(n == "r") n = rand(imgArr.length) - 1;
	else if(n > imgArr.length - 1) n = 0;
	setOp(id, 0, 0, '', 0);
	el = document.getElementById(id); 
	el.src = imgArr[n];
	fIn(id, 0, 100, n);
}