案例：XML DOM案例     状态：可编辑再运行    进入竖版
 运行结果　
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<html>
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<head>
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<script type="text/javascript" src="/example/xdom/loadxmldoc.js">
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</script>
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</head>
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<body>
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​
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<script type="text/javascript">
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//check if first child node is an element node
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function get_firstchild(n)
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{
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var x=n.firstChild;
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while (x.nodeType!=1)
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  {
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  x=x.nextSibling;
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  }
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return x;
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}
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xmlDoc=loadXMLDoc("/example/xdom/books.xml");
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​
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//create a title element and a text node
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var newNode=xmlDoc.createElement("title");
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var newText=xmlDoc.createTextNode("Giada's Family Dinners");
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//add the text node to the title node,
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newNode.appendChild(newText);
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​
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//replace the first child node with the new node
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var x=xmlDoc.getElementsByTagName("book")[0];
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x.replaceChild(newNode,get_firstchild(x));
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​
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//output all titles
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var y=xmlDoc.getElementsByTagName("title");
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for (i=0;i<y.length;i++)
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{
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document.write(y[i].childNodes[0].nodeValue);
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document.write("<br />");
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}
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​
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</script>
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</body>
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</html>
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​