读取XML文件

var childrenobj=myselect//document.all.myselect;
    var oXMLDoc = new ActiveXObject('MSXML');
    oXMLDoc.url = "mymsg.xml";
    var oRoot=oXMLDoc.root;
    if(oRoot.children != null)
 {
        for(var i=0;i<oRoot.children.item(0).children.length;++i)
  {
            oItem = oRoot.children.item(0).children.item(i);
            oOption = new Option(oItem.text,oItem.value);
   childrenobj.add(oOption);
        }
    }
//mymsg.xml文件
<?xml version="1.0" encoding="gb2312" ?>
<childrenlist>
<aa>
<child value='3301'>杭州地区</child>

<child value='3303'>温州地区</child>

</aa>
<aa>
<child value='3310'>台州地区</child>

<child value='3311'>丽水地区</child>
</aa>
</childrenlist>