function messageoutboxaus(id,cl) {
  if (cl=='') {
    if (document.getElementById(id).style.display == 'none') {
      if (navigator.appName.indexOf("Explorer") != -1) {
        document.getElementById(id).style.display = 'block';
      }
      else {
        document.getElementById(id).style.display = 'table-row';
      }
      document.getElementById(id+'_b').innerHTML = '<img src="/images/minus_blau_gr.gif" alt="zuklappen" border="0">';
      /*document.getElementById(id+'_th').style.backgroundColor = '#3366FF';
      document.getElementById(id+'_th').style.color = '#FFFFFF';*/
    }
    else {
      document.getElementById(id).style.display = 'none';
      document.getElementById(id+'_b').innerHTML = '<img src="/images/plus_blau_gr.gif" alt="aufklappen" border="0">';
      /*document.getElementById(id+'_th').style.backgroundColor = '#FFFFFF';
      document.getElementById(id+'_th').style.color = '#000000';*/
    }
  }
  else {
    var allHTMLTags = new Array();
    allHTMLTags = document.getElementsByTagName('tr');
    if (document.getElementById(id+'_id').style.display == 'none') {
      for (i=0; i<allHTMLTags.length; i++) {
        if (allHTMLTags[i].className==id+cl) {
          if (navigator.appName.indexOf("Explorer") != -1) {
            allHTMLTags[i].style.display = 'block';
          }
          else {
            allHTMLTags[i].style.display = 'table-row';
          }
        }
      }
      document.getElementById(id+'_b').innerHTML = 'Details ausblenden';
    }
    else {
      for (i=0; i<allHTMLTags.length; i++) {
        if (allHTMLTags[i].className==id+cl) {
          allHTMLTags[i].style.display = 'none';
        }
      }
      document.getElementById(id+'_b').innerHTML = 'Details einblenden';
    }
  }
}