var _itemStates = new Array();
  
  //set default states:
  $('#contentpage-unfold-0').hide();
  
  //toggle open/close
  function openCheckbox(sChkBx) {
    
    var _CurName = sChkBx.id;    
    _FldName = _CurName.replace( /click/g ,'unfold');      
    
    if ($('#'+_FldName).css('display') == 'none' ) {
      $('#'+_FldName).slideDown('fast');
    } else {
      $('#'+_FldName).slideUp('fast');
    }
  }

  function closeCheckBox(sChkBx) {
    var _CurName = sChkBx.id;    
    _FldName = _CurName.replace( /close/g ,'unfold');          
    
    if(_FldName) {
      $('#'+_FldName).slideUp('fast');
    }
  }