text: function editarTd(td){
      let input = td.querySelector("input")
      if(input != null)
          td.innerHTML = input.placeholder;
      else
          td.innerHTML = "<input type = 'text' placeholder = '"+td.innerHTML+"' value = '"+td.innerHTML+"' >";
  }
  
  function getValue(td){
      let input = td.querySelector("input")
      if(input != null){
          return input.value;
      }else{
          return td.innerHTML;
      }
  }