function change_update(stat){



     for (i=0;i<5;i++){
      if (i==stat){
                    document.getElementById('news'+i).style.display = 'block';
                    document.getElementById('change'+i).style.fontWeight = 'bold';
                    document.getElementById('change'+i).style.textDecoration = 'none';
                  }

      else{
            document.getElementById('news'+i).style.display = 'none';
            document.getElementById('change'+i).style.fontWeight = '';
            document.getElementById('change'+i).style.textDecoration = '';


          }
                      }


    }



     function change_termin(stat){



     for (i=0;i<5;i++){
      if (i==stat){
                    document.getElementById('termin'+i).style.display = 'block';
                    document.getElementById('terminchange'+i).style.fontWeight = 'bold';
                    document.getElementById('terminchange'+i).style.textDecoration = 'none';
                  }

      else{
            document.getElementById('termin'+i).style.display = 'none';
            document.getElementById('terminchange'+i).style.fontWeight = '';
            document.getElementById('terminchange'+i).style.textDecoration = '';


          }
                      }


    }