function updateCities()
{
   var currentLand = document.forms['als_form'].al_form_land.value;

   document.forms['als_form'].al_form_city.options.length = 0;
   if (currentLand)
      for (var i=0; i<cityIDs['land_'+currentLand].length; i++)
         document.forms['als_form'].al_form_city.options[i] = new Option(cityNames['land_'+currentLand][i],cityIDs['land_'+currentLand][i]);
}
function setCity(id)
{
   document.forms['als_form'].al_form_city.value=id;
}