Jquery操作XMLドキュメント

 <?xml version="1.0" encoding="utf-8" ?>
 2  <taxrates>
 3   <taxrate id="1">
 4     <lower>0</lower>
 5     <upper>500</upper>
 6     <rate>5</rate>
 7     <buckle>0</buckle>
 8   </taxrate>
 9   <taxrate id="2">
10     <lower>500</lower>
11     <upper>2000</upper>
12     <rate>10</rate>
13     <buckle>25</buckle>
14   </taxrate>
15   <taxrate id="3">
16     <lower>2000</lower>
17     <upper>5000</upper>
18     <rate>15</rate>
19     <buckle>125</buckle>
20   </taxrate>
21   <taxrate id="4">
22     <lower>5000</lower>
23     <upper>20000</upper>
24     <rate>20</rate>
25     <buckle>375</buckle>
26   </taxrate>
27   <taxrate id="5">
28     <lower>20000</lower>
29     <upper>40000</upper>
30     <rate>25</rate>
31     <buckle>1375</buckle>
32   </taxrate>
33   <taxrate id="6">
34     <lower>40000</lower>
35     <upper>60000</upper>
36     <rate>30</rate>
37     <buckle>3375</buckle>
38   </taxrate>
39   <taxrate id="7">
40     <lower>60000</lower>
41     <upper>80000</upper>
42     <rate>35</rate>
43     <buckle>6375</buckle>
44   </taxrate>
45   <taxrate id="8">
46     <lower>80000</lower>
47     <upper>100000</upper>
48     <rate>40</rate>
49     <buckle>10375</buckle>
50   </taxrate>
51   <taxrate id="9">
52     <lower>100000</lower>
53     <upper>99999999</upper>
54     <rate>45</rate>
55     <buckle>15375</buckle>
56   </taxrate>
57 </taxrates>

jquery:

function StandardTaxRate()
{
    $.ajax({
        url: "/Resource/salaryTaxRate.xml",
        dataType: 'xml',
        type: 'GET',
        timeout: 2000,
        error: function(xml)
        {
            alert("  XML     ！");
        },
        success: function(xml)
        {
            $(xml).find("taxrate").each(function(i)
            {
                var oid = $(this).attr("id");
                var lower = $(this).children("lower").text();
                var upper = $(this).children("upper").text();
                var rate = $(this).children("rate").text();
                var buckle = $(this).children("buckle").text();
                ///    。。。
            });
        }
    });
}