var dyn_carsOptionTree = [['3',[['156','10']]],['7',[['A4','43'],['A6','45']]],['10',[['318','942'],['320','948'],['528','1031']]],['16',[['C3','139'],['C4','909']]],['18',[['Rexton','1451']]],['25',[['Bravo','221']]],['26',[['Focus','253'],['Mondeo','259'],['Ranger','264'],['Sierra','268'],['Transit','904']]],['34',[['Coupe','302'],['Santa Fe','309'],['Terracan','947'],['Trajet','312']]],['36',[['XJ6','1266']]],['51',[['Mazda6','410'],['MPV','411'],['Xedos','419']]],['53',[['190','422'],['220','424'],['420','437'],['C 180','931'],['CLK 200','1047'],['CLK Class','447'],['CLS 320','1054'],['E Class','448']]],['61',[['Primera','525'],['Qashqai','1145']]],['63',[['Astra','868'],['Vectra','880']]],['67',[['206','550'],['407','977']]],['72',[['Grand Espace','615'],['Laguna','618'],['Megane','619']]],['78',[['Altea','1099']]],['88',[['Avensis','726'],['MR2','741'],['Yaris','758']]],['93',[['Passat','817'],['Sharan','822']]],['94',[['S40','846'],['S70','848']]]]
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

}