var dyn_carsOptionTree = [['7',[['A4','43']]],['10',[['316','950'],['318','942'],['320','948'],['330','979']]],['14',[['Lacetti','958']]],['16',[['Berlingo','136'],['C4','909'],['Grand C4 Picasso','2204']]],['23',[['Nitro','1243']]],['25',[['Doblo','225']]],['26',[['Fiesta','252'],['Focus','253'],['Ka','257'],['Mondeo','259'],['S-Max','1189']]],['32',[['Jazz','289']]],['34',[['Coupe','302'],['Getz','304'],['i30','1286'],['Santa Fe','309']]],['36',[['X-Type','324']]],['39',[['Carnival','1127'],['Cerato','1110']]],['44',[['LS','369']]],['51',[['Mazda2','409'],['Mazda6','410']]],['53',[['E 200','933']]],['57',[['One','477']]],['61',[['Kubistar','1008'],['Micra','521'],['Note','1091'],['Qashqai','1145'],['Tiida','1177']]],['63',[['Astra','868'],['Corsa','871'],['Insignia','1405'],['Vectra','880']]],['67',[['206','550'],['3008','1457'],['307','554'],['308','1241'],['Partner','1222']]],['72',[['Clio','612'],['Grand Scenic','1133'],['Megane','619'],['Trafic','1167']]],['76',[['9-3','661']]],['78',[['Leon','673']]],['80',[['Octavia','682']]],['85',[['Grand Vitara','707'],['Swift','713']]],['88',[['Avensis','726'],['Aygo','974'],['Corolla','730'],['Corolla Verso','1030'],['Yaris','758']]],['93',[['Golf','812']]],['94',[['S40','846'],['XC90','856']]]]
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

}