easyui datebox 扩展 只显示年月

一个日期控件只显示年月是很正常的事情。可是easyui datebox 不支持这种格式的，要么就是截取字符串，不可取，自己没有写过类似的扩展，但是也算是实现功能了，先来张图吧

本人水平有限写不出高深的东西，代码大家都能看懂，但是还是贡献出来，让大家提提意见共同进步吧

$.extend($.fn.combobox.methods, {
    yearandmonth: function (jq) {
        return jq.each(function () {
            var obj = $(this).combobox();
            var date = new Date();
            var year = date.getFullYear();
            var month = date.getMonth() + 1;
            var table = $('<table>');
            var tr1 = $('<tr>');
            var tr1td1 = $('<td>', {
                text: '-',
                click: function () {
                    var y = $(this).next().html();
                    y = parseInt(y) - 1;
                    $(this).next().html(y);
                }
            });
            tr1td1.appendTo(tr1);
            var tr1td2 = $('<td>', {
                text: year
            }).appendTo(tr1);

            var tr1td3 = $('<td>', {
                text: '+',
                click: function () {
                    var y = $(this).prev().html();
                    y = parseInt(y) + 1;
                    $(this).prev().html(y);
                }
            }).appendTo(tr1);
            tr1.appendTo(table);

            var n = 1;
            for (var i = 1; i <= 4; i++) {
                var tr = $('<tr>');
                for (var m = 1; m <= 3; m++) {
                    var td = $('<td>', {
                        text: n,
                        click: function () {
                            var yyyy = $(table).find("tr:first>td:eq(1)").html();
                            var cell = $(this).html();
                            var v = yyyy + '-' + (cell.length < 2 ? '0' + cell : cell);
                            obj.combobox('setValue', v).combobox('hidePanel');

                        }
                    });
                    if (n == month) {
                        td.addClass('tdbackground');
                    }
                    td.appendTo(tr);
                    n++;
                }
                tr.appendTo(table);
            }
            table.addClass('mytable cursor');
            table.find('td').hover(function () {
                $(this).addClass('tdbackground');
            }, function () {
                $(this).removeClass('tdbackground');
            });
            table.appendTo(obj.combobox("panel"));

        });
    }
});

调用方法 $('#id').combobox('yearandmonth')

.mytable
{
    padding: 0;
    margin: 10px auto;
    border-collapse: collapse;
    font-family: @宋体;
    empty-cells: show;
}

.mytable caption
{
    font-size: 12px;
    color: #0E2D5F;
    height: 16px;
    line-height: 16px;
    border: 1px dashed red;
    empty-cells: show;
}

.mytable tr th
{
    border: 1px dashed #C1DAD7;
    letter-spacing: 2px;
    text-align: left;
    padding: 6px 6px 6px 12px;
    font-size: 13px;
    height: 16px;
    line-height: 16px;
    empty-cells: show;
}

.mytable tr td
{
    font-size: 12px;
    border: 1px dashed #C1DAD7;
    padding: 6px 6px 6px 12px;
    empty-cells: show;
    border-collapse: collapse;
}
.cursor
{
    cursor: pointer;
}
.tdbackground
{
    background-color: #FFE48D;
}