创建xmldocument对象,并读取xml，绑定到select， ie/ff通用

dom对象可以方便的访问xml数据源，以下简单的演示了此功能：
<NewDataSet>
<Table>
<id>1</id>
<sheng_num>10</sheng_num>
<sheng_name>安徽</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>2</id>
<sheng_num>11</sheng_num>
<sheng_name>北京</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>3</id>
<sheng_num>12</sheng_num>
<sheng_name>福建</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>4</id>
<sheng_num>13</sheng_num>
<sheng_name>甘肃</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>5</id>
<sheng_num>14</sheng_num>
<sheng_name>广东</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>6</id>
<sheng_num>15</sheng_num>
<sheng_name>广西</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>7</id>
<sheng_num>16</sheng_num>
<sheng_name>贵州</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>8</id>
<sheng_num>17</sheng_num>
<sheng_name>海南</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>9</id>
<sheng_num>18</sheng_num>
<sheng_name>河北</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>10</id>
<sheng_num>19</sheng_num>
<sheng_name>河南</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>11</id>
<sheng_num>20</sheng_num>
<sheng_name>黑龙江</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>12</id>
<sheng_num>21</sheng_num>
<sheng_name>湖北</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>13</id>
<sheng_num>22</sheng_num>
<sheng_name>湖南</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>14</id>
<sheng_num>23</sheng_num>
<sheng_name>吉林</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>15</id>
<sheng_num>24</sheng_num>
<sheng_name>江苏</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>16</id>
<sheng_num>25</sheng_num>
<sheng_name>江西</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>17</id>
<sheng_num>26</sheng_num>
<sheng_name>辽宁</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>18</id>
<sheng_num>27</sheng_num>
<sheng_name>内蒙古</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>19</id>
<sheng_num>28</sheng_num>
<sheng_name>宁夏</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>20</id>
<sheng_num>29</sheng_num>
<sheng_name>青海</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>21</id>
<sheng_num>30</sheng_num>
<sheng_name>山东</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>22</id>
<sheng_num>31</sheng_num>
<sheng_name>山西</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>23</id>
<sheng_num>32</sheng_num>
<sheng_name>陕西</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>24</id>
<sheng_num>33</sheng_num>
<sheng_name>上海</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>25</id>
<sheng_num>34</sheng_num>
<sheng_name>四川</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>26</id>
<sheng_num>35</sheng_num>
<sheng_name>天津</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>27</id>
<sheng_num>36</sheng_num>
<sheng_name>新疆</sheng_name>
<sheng_Flag>0</sheng_Flag>
</Table>
<Table>
<id>28</id>
<sheng_num>37</sheng_num>
<sheng_name>西藏</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>29</id>
<sheng_num>38</sheng_num>
<sheng_name>云南</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>30</id>
<sheng_num>39</sheng_num>
<sheng_name>浙江</sheng_name>
<sheng_Flag>1</sheng_Flag>
</Table>
<Table>
<id>31</id>
<sheng_num>40</sheng_num>
<sheng_name>重庆</sheng_name>
<sheng_Flag>0</sheng_Flag>
</Table>
<Table>
<id>32</id>
<sheng_num>41</sheng_num>
<sheng_name>香港</sheng_name>
<sheng_Flag>0</sheng_Flag>
</Table>
<Table>
<id>33</id>
<sheng_num>42</sheng_num>
<sheng_name>澳门</sheng_name>
<sheng_Flag>0</sheng_Flag>
</Table>
<Table>
<id>34</id>
<sheng_num>43</sheng_num>
<sheng_name>台湾</sheng_name>
<sheng_Flag>0</sheng_Flag>
</Table>
<Table>
<id>35</id>
<sheng_num>44</sheng_num>
<sheng_name>国外</sheng_name>
<sheng_Flag>0</sheng_Flag>
</Table>
</NewDataSet>

<!--创建dom对象，ie/ff通用 开始-->
function createXmlDom(xmlstr){
if(window.DOMParser)//firefox内核的浏览器
{
var p = new DOMParser();
return p.parseFromString( xmlstr, "text/xml" );
}
else if( window.ActiveXObject )//ie内核的浏览器
{
var doc = new ActiveXObject( "Msxml2.DOMDocument" );
doc.loadXML(xmlstr);
return doc;
}
else
return false;
}
<!--创建dom对象，ie/ff通用 结束-->

<!--读取xml同步获取获取省份 开始-->
function loadprovincexml()
{
var myajax = new ajaxsz();
var province = myajax.sendData("POST","http://localhost:5964/GetData/GetXML.aspx",false,"");
province = province.replace(//n/g,"").replace(//s+/g,"");//替换换行和空格，ff的换行和空格都算一个节点

var select1 = document.getElementById("Select1");
　　 for (i = select1.length; i >= 0; i--)
　　 {
select1.remove(i);
}

select1.options.add(new Option("---选择省份---","0"));

　　 var xmldoc = new createXmlDom(province);
var nodes=xmldoc.documentElement.childNodes;
for(var i=0;i<nodes.length;i++)
{
var newOption = document.createElement("OPTION");
newOption.text=nodes[i].childNodes[2].childNodes[0].nodeValue;
newOption.value=nodes[i].childNodes[1].childNodes[0].nodeValue;
select1.options.add(newOption);
}
}
<!--读取xml同步获取获取省份 结束-->