var dyn_carsOptionTree = [['3',[['Spider','18']]],['10',[['318','942'],['320','948'],['325','1109'],['525','1103'],['730','1102'],['745','1184'],['X5','98'],['Z4','101']]],['14',[['SSR','961']]],['23',[['Nitro','1243']]],['25',[['Grande Punto','1119']]],['26',[['C-Max','1218'],['Focus','253']]],['34',[['Accent','299'],['Sonata','310']]],['36',[['X-Type','324']]],['37',[['Grand Cherokee','329']]],['43',[['Range Rover','364']]],['44',[['RX','370']]],['53',[['450','438'],['C 180','931'],['C 200','966'],['C 270','1039'],['CL 500','1044'],['CLK 200','1047'],['CLK 320','1051'],['CLS 320','1054'],['CLS 500','1056'],['S 320','1073'],['S 500','1076'],['SL 280','1080'],['SL 350','1083']]],['57',[['One','477']]],['58',[['Grandis','1155']]],['61',[['Primera','525']]],['63',[['Insignia','1405'],['Vectra','880']]],['67',[['206','550'],['207','1144']]],['69',[['911','569'],['Boxster','577'],['Cayenne','579'],['Cayman','1001']]],['72',[['Laguna','618'],['Megane','619']]],['76',[['9-3','661']]],['93',[['Beetle','806'],['Golf','812'],['Passat','817'],['Touareg','823']]],['94',[['V50','1160']]]]
function populateTarget(name,triggerObj,targetObj,emptyText) {

  eval ('tree = ' + name + 'OptionTree')

  triggerValue = getValue(triggerObj)

  for (i=0;i<tree.length;i++) {

    if (tree[i][0]==triggerValue) {
      break
    }

  }

  empty(targetObj)

  newOption = new Option()
  newOption.text = emptyText;

  newOption.value = ""
  targetObj.options[targetObj.options.length] = newOption

  if (i<tree.length) {

    options = tree[i][1]
    selectThisOption = 0

    for (i=0;i<options.length;i++) {

      newOption = new Option()
      newOption.text = options[i][0]
      newOption.value = options[i][1]
      targetObj.options[targetObj.options.length] = newOption

    }

    targetObj.options.length = options.length + 1;
  }

}

function empty(select) {

  select.options.length = 0

}

function getValue(formObj) {

  value = null

  if (formObj.options) { // select

    if (formObj.selectedIndex > -1)
      value = formObj.options[formObj.selectedIndex].value

  } else {

    if (formObj.length) { // radio
      for (var b = 0; b < formObj.length; b++)
        if (formObj[b].checked)
          value = formObj[b].value
    }
    else if (formObj.checked) // checkbox
      value = formObj.value

  }

  return value

}