function switchImage(img,src){
  document.getElementById('img'+img).src="../html/img/pool/"+src;
/*  if(document.getElementById('headline'+img).style.display=='none') {
  	document.getElementById('headline'+img).style.display='block';
  }else{
  	document.getElementById('headline'+img).style.display='none';
  }*/
}

function switchContent(div,anz){
  for(var i =0 ; i<anz;i++){
  	var ausblenden= "jahr"+i;
		document.getElementById(ausblenden).style.display='none';
  }
 	document.getElementById('jahr'+div).style.display='block';
  /*document.getElementById('headline'+div).style.display='block';*/
}