function show_annotation(currentEl) {
  var parentDiv = document.getElementById('magazin_foto');
  var fotos = parentDiv.getElementsByTagName('img');
	for (var i = 0, each = null; null != (each = fotos[i]); i++) {
    if (each.id == currentEl.id) {
      each.className="notransparent";
    } else {
      each.className="transparent";
    }
	}
  var parentDiv = document.getElementById('magazin_annotation');
  var annotations = parentDiv.getElementsByTagName('div');
	for (var i = 0, each = null; null != (each = annotations[i]); i++) {
    if (each.id == 'anno'+currentEl.id) {
//      each.style.display="block";
      each.className="annotation";
    } else {
//      each.style.display="none";
      each.className="hdn";
    }
	}
}