var dyn_carsOptionTree = [['7',[['A4','43'],['A5','1244']]],['10',[['1 Series','882'],['3 Series','86'],['X3','1015']]],['16',[['C4','909'],['C5','140'],['Grand C4 Picasso','2204']]],['26',[['Focus','253'],['Mondeo','259']]],['34',[['Coupe','302'],['i30','1286'],['ix35','2138']]],['101',[['75E','1466']]],['36',[['X-Type','324'],['XF','1390']]],['39',[['Rio','339']]],['43',[['Range Rover Evoque','2226']]],['51',[['Mazda5','926']]],['53',[['B Class','1168'],['C Class','444'],['E Class','448']]],['57',[['Cooper','475']]],['61',[['Juke','2162'],['Micra','521'],['Note','1091'],['Primastar','1007'],['Qashqai +2','2129'],['Tiida','1177']]],['63',[['Meriva','873']]],['67',[['207','1144'],['308','1241'],['5008','2137'],['RCZ','2161']]],['78',[['Ibiza','672']]],['80',[['Fabia','679'],['Superb','683']]],['88',[['Avensis','726'],['Corolla','730'],['Rav4','748'],['Yaris Verso','1159']]],['93',[['Golf','812'],['Jetta','813'],['Passat','817'],['Polo','819']]],['94',[['S40','846']]]]
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

}