javascript中使用xpath的代码片断

var nodeList=null,path="";
xmlDoc=new ActiveXObject("microsoft.xmldom");
xmlDoc.async = false;
xmlDoc.load("filename.xml");
xmlDoc.setProperty("SelectionLanguage", "XPath");
path="//bm8kj_base[@property='1']";
nodeList = xmlDoc.documentElement.selectNodes(path);