代码示例：（标识：xdom_removecurrent）
<html>
<head>
<script type="text/javascript" src="/static/demo/html/js/loadxmldoc.js">
</script>
</head>
<body>
<script type="text/javascript">
xmlDoc=loadXMLDoc("/static/demo/xdom/books.xml");
document.write("removeChild() 方法执行前 book 节点的数目：");
document.write(xmlDoc.getElementsByTagName("book").length);
document.write("<br />");
x=xmlDoc.getElementsByTagName("book")[0]
x.parentNode.removeChild(x);
document.write("removeChild() 方法执行后 book 节点的数目：");
document.write(xmlDoc.getElementsByTagName("book").length);
</script>
</body>
</html>
