var output;
var imgLayer;
var imgHash = {};
var bls = new Array('sh', 'mv', 'hh', 'ni', 'hb', 'bb', 'st', 'be', 'nw', 'he', 'th', 'sn', 'rp', 'by', 'bw', 'sl');
var blsnames = {sh: 'Schleswig-Holstein',
                mv: 'Mecklenburg-Vorpommern',
                hh: 'Hamburg',
                ni: 'Niedersachsen',
                hb: 'Bremen',
                bb: 'Brandenburg',
                st: 'Sachsen-Anhalt',
                be: 'Berlin',
                nw: 'Nordrhein-Westfalen',
                he: 'Hessen',
                th: 'Thüringen',
                sn: 'Sachsen',
                rp: 'Rheinland-Pfalz',
                by: 'Bayern',
                bw: 'Baden-Württemberg',
                sl: 'Saarland'};

function init() {
  output = document.getElementById('outputstr');
  imgLayer = document.getElementById('imgLayer');
  imgHash['none'] = new Image();
  imgHash['none'].src = '/sys/img/bundeslaender.gif';
  for (i=0; i<bls.length; i++) {
    imgHash[bls[i]] = new Image();
    imgHash[bls[i]].src = '/sys/img/bundeslaender_'+bls[i]+'.gif';
  }
}
function setImgLayer(name) {
  imgLayer.src=imgHash[name].src; 
  output.innerHTML = 'Gewählt: '+blsnames[name];
}

function clearImgLayer() {
  imgLayer.src=imgHash['none'].src;
  output.innerHTML = '';
}