function show_subnavi(layer_id) {

	document.getElementById('navi'+layer_id+'0').style.backgroundPosition = "0px 0px";
	document.getElementById('subnavi_'+layer_id+'x').style.visibility = "visible";

}

function hide_subnavi(layer_id) {

	document.getElementById('navi'+layer_id+'0').style.backgroundPosition = "0px -22px";
	document.getElementById('subnavi_'+layer_id+'x').style.visibility = "hidden";

}

function galerie_in(kategorie,bild_id,anz_bilder) {
	
	//Zuerst alle wieder ausblenden
	for(e = 1; e <= anz_bilder; e++) {
		document.getElementById('showroom_'+e).style.display = 'none';
	}
	
	document.getElementById('showroom_'+bild_id).style.display = 'inline';
	//document.getElementById('link_to_gross').href = '../images/' + kategorie + '/' + bild;

}

function galerie_out(kategorie,bildold) {

	//document.getElementById('showroom_'+bildold).style.display = 'none';
	//document.getElementById('showroom_1').style.display = 'inline';
}


var i = 80;

function fade_out(layer_id) {
	
	
	document.getElementById(layer_id).style.opacity = i/100;
	document.getElementById(layer_id).style.filter = "Alpha(opacity='"+i+"', finishopacity=0, style=0)";
	
	//i -= i*0.05;
	i -= 4;
	i = Math.floor(i);
	
	if(i >= 0) window.setTimeout("fade_out('"+layer_id+"')",50);
	else { document.getElementById(layer_id).style.visibility = 'hidden'; }

}