function get_list_city (country, dropdown_list, school_type, additional_city_id) {
        dropdown_list.empty();
        dropdown_list.append("<option label=\"" + field_string_table.sp02 + "\" value=\"null\">" + field_string_table.sp02 + "</option>");
        res = $.ajax({ type: "GET", url: "/ajax-city.html?query_set=" + country +
          (school_type ? "&school_type=" + school_type : "") +
          (additional_city_id ? "&acid=" + additional_city_id : ""),
          dataType: "xml", complete: get_list_callback, dropdown_list: dropdown_list});
    }

    function get_list_subcity (city, dropdown_list) {
        var school_list = new Array();
        dropdown_list.empty();
        dropdown_list.append("<option label=\"" + field_string_table.sp02 + "\" value=\"null\">" + field_string_table.sp02 + "</option>");
        res = $.ajax({ type: "GET", url: "ajax-subcity.html?city=" + city, dataType: "xml", complete: get_list_callback, dropdown_list: dropdown_list});
    }

    function get_list_callback (data) {
      school_list_xml = $('suggestion', data.responseXML);

      try {
          this.dropdown_list.empty();

          if (school_list_xml.length == 0) {
              switch (this.dropdown_list.attr('id')) {
                  case 'detail_education_subject':
                      this.dropdown_list.append("<option label=\"" + field_string_table.sp03 + "\" value=\"null\">" + field_string_table.sp03 + "</option>");
                      break;
                  case 'detail_education_field':
                      this.dropdown_list.append("<option label=\"" + field_string_table.sp04 + "\" value=\"null\">" + field_string_table.sp04 + "</option>");
                      break;
                  case 'detail_subcity':
                      this.dropdown_list.append("<option label=\"" + field_string_table.sp05 + "\" value=\"null\">" + field_string_table.sp05 + "</option>");
                      break;
              }
              return;
          } else {

              if (this.dropdown_list.attr('id') != 'detail_education_school' && this.dropdown_list.attr('id') != 'detail_education_univercity'){
                  this.dropdown_list.append("<option label=\"" + field_string_table.sp01 + "\" value=\"null\">" + field_string_table.sp01 + "</option>");
              }
          
              for (var i = 0; i < school_list_xml.length; ++i) {
                  this.dropdown_list.append(school_list_xml[i].firstChild.data);
              }
              this.dropdown_list.val("null");
          }
      } catch(e) {
          this.dropdown_list.append("<option>Error: " + e + "</option>");
          return;
      }
    }

    function add_school_form_show (type) {
        var country = $("#detail_education_country").val();
        var city = (country == 'TR' ? $("#detail_education_city_dropdown > option:selected").text() : $("#detail_education_city_suggest").val());
        if (city.toLowerCase() == 'null') city = '';
        
//        if (country) get_list_city(country, $("#school_city"), 'all');

        if (!school_add_form_is_visible) {
            $("#school_add_container").show('slow', function() {
                $("#school_add_container > iframe").height($("#school_add_container").height() + 5);
            });

            school_add_form_is_visible = true;
        }

        $("#school_add_form_success").hide(0);

        $("#school_add_form input[name='school_type'][value='" + type + "']").attr("checked","checked");
        $("#school_country").val(country);
        $("#school_city").val(city);

        $("#school_add_form").show(0);
    }

    function add_school_form_hide () {

        $("#school_add_container").hide('slow');

        school_add_form_is_visible = false;

    };

    function add_school_submit () {

        var type = $("input[name='school_type'][@checked]").val();
        var country = $("#school_country").val();
        var city = $("#school_city").val();
        var city_name = $("#school_city option:selected").text();
        var school = $("#school_name").val();

        if (city == "" || school == "" || country == 'empty' || country == 'null') {
            alert(field_string_table.sp06);
        } else {
            $.ajax({ type: "POST", url: "school-add.html?nocache=" + Math.random(), data: { type: type, country: country, city: city, school: school }, complete: add_school_submit_callback});

            if (type == '0') edu_type = 'soh';
            else if (type == '1') edu_type = 'sou';
            else if (type == '2') edu_type = 'sog';

            $("#detail_education").val(edu_type);

            $("#detail_education_country").val($("#school_country").val());

            if ($("#detail_education_city_dropdown_tr").css('display') != 'none') { // if drop_down
//                $("#detail_education_city_dropdown").empty();
//                $("#school_city option").clone().appendTo("#detail_education_city_dropdown");
                $("#detail_education_city_dropdown").val($("#school_city").val());
            } else { // if suggest

                $("#detail_education_city_suggest").val($("#school_city").val());
//                $("#detail_education_city_suggest").val($("#school_city option:selected").text());
            }

//            set_visible_city('detail_education_country', 'detail_education_city_suggest', 'detail_education_city_dropdown', null);

            $("#school_add_form").hide(0);
            $("#school_add_form_loading").show(0, function() {
                $("#school_add_container > iframe").height($("#school_add_form_loading").height() + 5);
            });
        }
    }

    function add_school_submit_callback(data) {

        $("#school_name").val("");
        data = $('response', data.responseXML)

        if (data != "ERROR") {

            $("#school_add_form_loading").hide(0);
            $("#school_add_form_success").show(0);

            var school = $(data).find('school')[0].firstChild.data;
            var id = $(data).find('id')[0].firstChild.data;

            var type = $("input[name='school_type'][@checked]").val();

            school_form.set_visible(document.getElementById('detail_education').value);

            if (type == 0) {
                $("#detail_education_school").append('<option selected label="'+school+'" value="'+id+'">'+school+'</option>');
                $("#detail_education_school").attr("disabled", '');
            } else if (type == 1) {
                $("#detail_education_univercity").append('<option selected label="'+school+'" value="'+id+'">'+school+'</option>');
                $("#detail_education_univercity").attr("disabled", '');
            } else if (type == 2) {
                $("#detail_education_gschool").append('<option selected label="'+school+'" value="'+id+'">'+school+'</option>');
                $("#detail_education_gschool").attr("disabled", '');
            }

            setTimeout("add_school_timeout()", 3000);

        } else {

            $("#school_add_form_loading").hide(0);
            $("#school_add_container").hide(0);
            $("#school_add_form").show(0);
            school_add_form_is_visible = false;

            alert(field_string_table.sp07);

        }

    }

    function add_school_timeout() {
        $("#school_add_container").hide('slow');
        school_add_form_is_visible = false;
    }

    function set_visible_fields2() {

        var status = $("#detail_education").val();
        var country = $("#detail_education_country").val();

        school_form.set_visible(status, country);

    }


    function set_visible_city(ddCountry, sgCity, ddCity, ddSubcity) {

        $('#' + sgCity + '_tr').hide();
        $('#' + ddCity + '_tr').hide();
        $('#' + ddSubcity + '_tr').hide();

        if ($('#' + ddCountry).val() == 'TR') {
            $('#' + ddCity + '_tr').show();
            $('#' + ddSubcity + '_tr').show();
        } else {
            $('#' + sgCity + '_tr').show();
        }

    }

    function set_country_swicher(ddCountry, sgCity, ddCity, ddSubcity) {
        set_visible_city(ddCountry, sgCity, ddCity, ddSubcity);
        $('#' + ddCountry).change(function() {
            set_visible_city(ddCountry, sgCity, ddCity, ddSubcity);
        });

        $("#" + ddCity).change(function() {
            city = $("#" + ddCity).val();
            get_list_subcity (city, $("#" + ddSubcity));
        });

    }