<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>Sample</title>
<script type="text/javascript" src="prototype.js"></script>
<script type="text/javascript"><!--
function loadXMLFile()
{
new Ajax.Request("sample.xml", { method: "get", onComplete: displayData });
}
function displayData(httpObj)
{
var XML = httpObj.responseXML;
var root = XML.childNodes[0];
if (window.createPopup) root = XML.childNodes[1];
var xmlTag1 = checkNode("Items",root.childNodes);
if (xmlTag1)
{
xmlTag2 = checkNode("Item",xmlTag1.childNodes);
if (xmlTag2)
{
xmlTag3 = checkNode("Title",xmlTag2.childNodes);
if (xmlTag3) $("result").innerHTML = xmlTag3.firstChild.nodeValue;
return;
}
}
}
function checkNode(aTag,aXmlObj)
{
for (var i=0; i<aXmlObj.length; i++)
{
if (aXmlObj[i].tagName == aTag) return aXmlObj[i];
}
return null;
}
// --></script>
</head>
<body>
<h1>XMLデータ処理</h1>
<form>
<input type="button" value="読み込み" onClick="loadXMLFile()">
</form>
<div id="result"></div>
</body>
</html>
説明などは本書を参考にしてください。