var dyn_carsOptionTree = [['7',[['A3','42'],['A4','43'],['A5','1244'],['A6','45'],['TT','63']]],['10',[['3 Series','86'],['4 Series','2375'],['5 Series','87']]],['16',[['Grand C4 Picasso','2204']]],['25',[['Multipla','227']]],['26',[['Fiesta','252'],['Focus','253'],['Galaxy','255'],['S-Max','1189']]],['34',[['i30','1286'],['ix35','2138'],['Santa Fe','309'],['Tucson','983']]],['36',[['XF','1390']]],['39',[['Ceed','1126']]],['44',[['IS','368']]],['51',[['323','405'],['Mazda5','926'],['Mazda6','410']]],['53',[['E Class','448']]],['57',[['Cooper','475']]],['58',[['Carisma','479']]],['61',[['Almera','512'],['Micra','521'],['Primera','525'],['Pulsar','526'],['Qashqai','1145'],['Qashqai +2','2129'],['X-Trail','534']]],['63',[['Astra','868'],['Zafira','541']]],['67',[['2008','2386'],['307','554'],['407','977'],['508','2182']]],['72',[['Clio','612'],['Grand Scenic','1133'],['Scenic','621']]],['80',[['Superb','683'],['Yeti','2115']]],['85',[['Alto','704'],['Baleno','705'],['Celerio','2469'],['Ignis','708'],['Swift','713'],['SX4','1236'],['SX4 S-Cross','2416'],['Vitara','714']]],['88',[['Avensis','726'],['Corolla','730'],['Corolla Verso','1030'],['Verso','2142'],['Yaris','758']]],['93',[['Caddy','964'],['Golf','812'],['Passat','817'],['Passat CC','2349'],['Polo','819']]]]
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

}