Ticket #9944: tabletools_insertcell.js

    function insertCell(selection, insertBefore)
    {
      var startElement = selection.getStartElement();
      var tableElement = startElement.getAscendant('table', 0);

      if(!tableElement)
        return;

      var cell = startElement.getAscendant('td', 1);

      if(cell.getAscendant('table', 0).$ != tableElement.$)
      {
        cell = startElement.getAscendant('th', 1);
      }

      if(!cell || cell.getAscendant('table', 0).$ != tableElement.$)
        return;

      // Create the new cell element to be added.
      var newCell = cell.clone();
      if(!CKEDITOR.env.ie)
        newCell.appendBogus();

      if(insertBefore)
        newCell.insertBefore(cell);
      else
        newCell.insertAfter(cell);
    }