var dyn_carsOptionTree = [['3',[['GT','1027']]],['7',[['A3','42'],['A4','43'],['A6','45'],['TT','63']]],['10',[['316','950'],['318','942'],['320','948'],['323','1108'],['5 Series','87'],['520','937'],['523','1013'],['X3','1015'],['Z3','100']]],['15',[['300C','1138']]],['16',[['Picasso','1230']]],['26',[['Galaxy','255'],['Mondeo','259'],['Transit','904']]],['34',[['Coupe','302'],['Santa Fe','309'],['Sonata','310']]],['36',[['XJR','1212']]],['39',[['Picanto','1118'],['Rio','339'],['Sedona','340'],['Sportage','343']]],['43',[['Defender','360'],['Freelander','362'],['Range Rover','364']]],['51',[['Mazda5','926']]],['53',[['220','424'],['A 140','971'],['CLK 240','1049'],['E 200','933'],['ML 270','1004'],['S 320','1073'],['SL 320','1082']]],['57',[['Cooper','475']]],['58',[['Lancer','488'],['Pajero','490']]],['61',[['Almera','512'],['Terrano','533'],['X-Trail','534']]],['63',[['Movano','1129'],['Vectra','880'],['Zafira','541']]],['67',[['206','550'],['407','977'],['Partner','1222']]],['72',[['Espace','613'],['Grand Scenic','1133'],['Megane','619']]],['76',[['9-3','661'],['9-5','662']]],['78',[['Leon','673']]],['88',[['Avensis','726'],['Celica','729'],['Yaris','758']]],['93',[['Caddy','964'],['Golf','812'],['Passat','817'],['Touran','824']]],['94',[['S40','846'],['S60','847'],['V70','853'],['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

}