function swap(targetID) {
  	obj = document.getElementById('lay'+targetID);
  	if(obj.style.display ==  'block'){
	obj.style.display =  'none';
	document.getElementById('link'+targetID).className='semDetail'
	}
	else {
	obj.style.display =  'block';
	document.getElementById('link'+targetID).className='semDetailOn'
	}
  }
  function swapBild(targetID) {
  var Aussage = document.images[targetID].src;
var Ergebnis = Aussage.search(/On.+/);
if (Ergebnis != -1)
document.images[targetID].src='pix_interface/detailOff.gif';
else document.images[targetID].src='pix_interface/detailOn.gif';   	
  }