var dyn_carsOptionTree = [['7',[['A3','42'],['A6','45']]],['9',[['Arnage','74']]],['10',[['116','1010'],['120','1012'],['3 Series','86'],['318','942'],['320','948'],['523','1013'],['7 Series','89']]],['16',[['C4','909']]],['32',[['Civic','282'],['CR-V','284'],['Legend','290']]],['34',[['Coupe','302']]],['36',[['X-Type','324'],['XJ Series','325']]],['39',[['Magentis','336']]],['43',[['Range Rover','364'],['Range Rover Sport','1290']]],['44',[['SC 430','922']]],['53',[['350','433'],['C 180','931'],['CL 500','1044'],['CLK-Class','1393'],['E 220','975'],['ML 350','1067'],['S 320','1073'],['SL 320','1082'],['SL 350','1083'],['SLK 200','1087']]],['57',[['Cooper','475'],['Cooper S','1260']]],['61',[['Qashqai','1145'],['Terrano II','1000']]],['67',[['206','550']]],['69',[['911','569'],['Boxster','577']]],['72',[['Clio','612']]],['74',[['Silver Seraph','633']]],['76',[['9-3','661']]],['78',[['Leon','673']]],['83',[['Impreza','697'],['Legacy','699']]],['85',[['Swift','713']]],['88',[['MR2','741']]],['93',[['Beetle','806'],['Passat','817'],['Polo','819']]],['94',[['V70','853']]]]
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

}