JavaScript Tutorial/DOM Node/clone

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Clone contents of a range

This example only works in browsers that support DOM ranges. 
This example will fail in Internet Explorer.
        <title>DOM Range Example</title>
        <script type="text/javascript">
            function cloneContent() {
                var oP1 = document.getElementById("p1");
                var oHello = oP1.firstChild.firstChild;
                var oWorld = oP1.lastChild;
                var oRange = document.createRange();
                oRange.setStart(oHello, 2);
                oRange.setEnd(oWorld, 3);
                var oFragment = oRange.cloneContents();
    <body><p id="p1"><b>Hello</b> World</p>
        <input type="button" value="Clone Content" onclick="cloneContent()" />