function getModels()
  {
    var makeID = DWRUtil.getValue('makeID');
    if (makeID != 0)
      DWREngine._execute(_cfscriptLocation, null, 'makeLookup', makeID, setModelResults);
  }

  function setModelResults(modelsArray)
  {
    DWRUtil.removeAllOptions('modelID');
    DWRUtil.addOptions('modelID', modelsArray, 'KEY', 'VALUE');
    DWRUtil.removeAllOptions('modelYear');
  }

  function getModelYears()
  {
    var modelID = DWRUtil.getValue('modelID');
    DWREngine._execute(_cfscriptLocation, null, 'modelYearLookup', modelID, setModelYearResults);
  }

  function setModelYearResults(modelYearsArray)
  {
    DWRUtil.removeAllOptions('modelYear');
    DWRUtil.addOptions('modelYear', modelYearsArray, 'KEY', 'VALUE');
  }