function populateCitySelect( country ) {
  if ( country.length == 0 ) {
    document.theForm.Choice.length = 1;
    document.theForm.Choice.options[0] = new Option('Choose a country');
    document.theForm.Choice.options[0].value = '';

    return;
  }

  newOptions = eval(country+'Array');

  if(newOptions.length == 1) {
    preselect = true;
  } else {
    preselect = false;
  }
  document.theForm.Choice.length = 1;
  document.theForm.Choice.options[0] = new Option('Choose a city or tour :');
  document.theForm.Choice.options[0].value = '';

  document.theForm.Choice.options[0].selected = true;

  for ( i=0; i<newOptions.length; i++ ) {
    document.theForm.Choice.length++;
    thisEntry = newOptions[i];
    newOption = new Option( thisEntry[1] );
    newOption.value = thisEntry[0];
    document.theForm.Choice.options[i+1] = newOption;
  }
  if(preselect) document.theForm.Choice.options[1].selected = true;
}