function newColor(idCell) {
      if (document.all) eval('document.all.'+idCell+'.style.background = "#ff0000"');
      else eval('document.getElementById("' + idCell + '").style.background = "#ff0000"')
      }

      function backColor(idCell) {
      if (document.all) eval('document.all.'+idCell+'.style.background = "#0099ff"');
      else eval('document.getElementById("' + idCell + '").style.background = "#0099ff"')
      }