jqGrid 編集フォームの状態選択ボックスのオプション値が正しくないのはなぜですか?

<code class="javascript">var countries = { '1': 'US', '2': 'UK' };
var states = { '1': 'Alabama', '2': 'California', '3': 'Florida', '4': 'Hawaii', '5': 'London', '6': 'Oxford' };
var statesOfCountry = {
    1: { '1': 'Alabama', '2': 'California', '3': 'Florida', '4': 'Hawaii' },
    2: { '5': 'London', '6': 'Oxford' }
};

var resetStatesValues = function () {
    grid.setColProp('State', { editoptions: { value: states} });
};

$("#list").jqGrid({
    data: mydata,
    datatype: 'local',
    colModel: [
        { name: 'Name', width: 200 },
        { 
            name: 'Country', 
            width: 100, 
            editable: true, 
            formatter: 'select',
            edittype: 'select', 
            editoptions: {
                value: countries,
                dataInit: function (elem) {
                    setStateValues($(elem).val());
                },
                dataEvents: [
                    { type: 'change', fn: function (e) { changeStateSelect($(e.target).val(), e.target); } },
                    { type: 'keyup', fn: function (e) { $(e.target).trigger('change'); } }
                ]
            }
        },
        {
            name: 'State', 
            width: 100, 
            editable: true, 
            formatter: 'select',
            edittype: 'select', 
            editoptions: { value: states }
        }
    ],
    onSelectRow: function (id) {
        if (id &amp;&amp; id !== lastSel) {
            if (lastSel != -1) {
                resetStatesValues();
                grid.restoreRow(lastSel);
            }
            lastSel = id;
        }
    },
    ondblClickRow: function (id, ri, ci) {
        if (id &amp;&amp; id !== lastSel) {
            grid.restoreRow(lastSel);
            lastSel = id;
        }
        resetStatesValues();
        grid.editRow(id, true, null, null, 'clientArray', null,
                        function (rowid, response) {  // aftersavefunc
                            grid.setColProp('State', { editoptions: { value: states} });
                        });
        return;
    },
    editurl: 'clientArray',
    sortname: 'Name',
    height: '100%',
    viewrecords: true,
    rownumbers: true,
    sortorder: "desc",
    pager: '#pager',
    caption: "Demonstrate dependend select/dropdown lists (edit on double-click)"
}).jqGrid('navGrid','#pager', 
          { edit: true, add: true, del: false, search: false, refresh: false },
          { // edit options
              recreateForm:true,
              onClose:function() {
                  resetStatesValues();
              }
          },
          { // add options
              recreateForm:true,
              onClose:function() {
                  resetStatesValues();
              }
          });</code>