function ChangeCountry(){
    $.ajax({
          type: "POST",
          url: "/ajax_city_get.php",
          dataType: "xml",
          data: "country_id=" + $("#country").attr("value"),
          success: ShowCity
        });
    $("#city_select").attr({"disabled":"true"});
}



function ShowCity(data){
    i = 0;
    
    tmp = "<select name='comm[city_id]' id='city_select'>";
    
    while(i < data.getElementsByTagName('id').length){
        id = 0;
        ids = data.getElementsByTagName('id').item(i);
        if(ids.firstChild){
            id = ids.firstChild.data;
        }
        name = 0;
        names = data.getElementsByTagName('name').item(i);
        if(names.firstChild){
            name = names.firstChild.data;
        }
        tmp += "<option value='"+id+"'>" + name;
        i++;
    }
    tmp += "</select>";
    $("#city_select").attr({"disabled":"false"});
    $("#city").attr({"innerHTML":tmp});
}