<!--

function initImage(objId){
	image = document.getElementById(objId);
	setOpacity(image, 1);
	fadeIn(objId,2);
}

function setOpacity(obj,opacity){
	opacity=(opacity==100) ? 99.999 : opacity;
	obj.style.filter = "alpha(opacity:"+opacity+")"; // IE/Win
	obj.style.KHTMLOpacity = opacity/100; // Safari<1.2, Konqueror
	obj.style.MozOpacity = opacity/100; // Older Mozilla and Firefox
	obj.style.opacity = opacity/100; // Safari 1.2, newer Firefox and Mozilla, CSS3
}

function fadeIn(objId,opacity){
	if(!document.getElementById) return;
	obj = document.getElementById(objId);
	if(opacity <= 100){
		setOpacity(obj,opacity);
		opacity += 2;
		window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
	}
}

function mk_nextimg(anz_img, this_img){
	first = document.imgform.first.value;
	last = document.imgform.last.value;
	if(anz_img==this_img){
		new_img = 1;
	}else{
		if(this_img==last){
			new_img = first;
		}else{
			new_img = this_img + 1;
		}
	}
	return new_img;
}

function start_fade(anz_img, this_img, loop_seconds){
	initImage('header_image');
	
	next_img = mk_nextimg(anz_img, this_img);
	var Bild = new Image();
    Bild.src = "images/bg_headimg/bg_"+next_img+".png";
	
	document.getElementById('header_current').style.backgroundImage = 'url(images/bg_headimg/bg_'+this_img+'.png)';
	document.getElementById('header_image').style.backgroundImage = 'url(images/bg_headimg/bg_'+next_img+'.png)';
	
	parti = setTimeout("start_fade("+anz_img+", "+next_img+", "+loop_seconds+")",loop_seconds);
}
//-->