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tree-walker-005.html
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<html>
<head>
<script src=traversal.js language="JavaScript" type="text/JavaScript" ></script>
<title>Traversal Test</title>
</head>
<body>
<div id="test">
<span id="A">
<span id="A.1">
</span>
<span id="A.2">
</span>
<span id="A.3">
</span>
</span>
<span id="B">
<span id="B.1">
<span id="B.1.1">
</span>
<span id="B.1.2">
</span>
</span>
<span id="B.2">
<span id="B.2.1">
</span>
</span>
</span>
<span id="C">
<span id="C.1">
<span id="C.1.1">
<span id="C.1.1.1">
</span>
<span id="C.1.1.2">
</span>
<span id="C.1.1.3">
</span>
</span>
<span id="C.1.2">
<span id="C.2.1">
</span>
</span>
</span>
</span>
<span id="D">
</span>
</div>
<div style="font-family: Courier; font-size: 14; white-space: pre">
<script>
if (window.testRunner)
testRunner.dumpAsText();
var root = document.getElementById('test');
var start = document.getElementById('B');
function testNodeFiter(n)
{
if (n.id == 'B.1')
return NodeFilter.FILTER_REJECT;
if (n.tagName == 'SPAN')
return NodeFilter.FILTER_ACCEPT;
return NodeFilter.FILTER_SKIP;
}
var tw1 = document.createTreeWalker(root, NodeFilter.SHOW_ELEMENT, testNodeFiter, false);
tw1.firstChild();
tw1.nextSibling();
document.write(dumpTreeWalker(tw1, start));
</script>
</div>
</body>
</html>