// JavaScript Document

// Externer Link

function extlink(url)
{
window.open(url);
}

// Diashow Boxen

var altelegende = "legende01";
var oldbutton ="assets/ff01.gif";
var oldid ="button01";

function steuerung(image, legende, button, id) {
document.getElementById(altelegende).style.display='none';
document.getElementById('visu').src= image; 
document.getElementById(legende).style.display='block';
altelegende = legende;

document.getElementById(oldid).src= oldbutton; 
oldbutton = button;
oldid = id;
}