function swapDiv(basename, nr) {
	
  if (document.getElementById(basename+nr).style.display == 'none') {
    document.getElementById(basename+nr).style.display = 'block';
		document.getElementById("btn_"+nr).value = 'Code schliessen';
  } else {
    document.getElementById(basename+nr).style.display = 'none';
		document.getElementById("btn_"+nr).value = 'Code anzeigen';
  }
  return true;
}

function showDiv(basename, nr) {
  closeDivs(basename);
	if (document.getElementById(basename+nr).style.display == 'none') {
		document.getElementById(basename+nr).style.display = 'block';
	}
  return true;
}

function closeDivs(basename) {
  var divs = document.getElementsByTagName('div');
  var filter = new RegExp(basename+"[0-9]+", "i");
  for (e in divs){
    if (divs[e].id != '' && filter.test(divs[e].id)){
      //alert(divs[e].id+' ausgeblendet'+filter.test(divs[e].id));
      document.getElementById(divs[e].id).style.display = 'none';
    }
  } 
}