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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Dynamically Editing Page Content</title>
<script type="text/javascript" language="javascript">
var xmlHttp;
function createXMLHttpRequest() {
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
} else if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
}
}
function doSearch() {
createXMLHttpRequest();
xmlHttp.onreadystatechange = handleStateChange;
xmlHttp.open("GET", "dynamicContent.xml", true);
xmlHttp.send(null);
}
function handleStateChange() {
if (xmlHttp.readyState == 4) {
if (xmlHttp.status == 200) {
clearPreviousResults();
parseResults();
}
}
}
function clearPreviousResults() {
var header = document.getElementById("header");
if (header.hasChildNodes()) {
header.removeChild(header.childNodes[0]);
}
var tableBody = document.getElementById("resultsBody");
while (tableBody.childNodes > 0) {
tableBody.removeChild(tableBody.childNodes[0]);
}
}
function parseResults() {
var results = xmlHttp.responseXML;
var property = null;
var address = "";
var price = "";
var comments = "";
var properties = results.getElementsByTagName("property");
for (var i = 0; i < properties.length; i++) {
property = properties[i];
address = property.getElementsByTagName("address")[0].firstChild.nodeValue;
price = property.getElementsByTagName("price")[0].firstChild.nodeValue;
comments = property.getElementsByTagName("comments")[0].firstChild.nodeValue;
addTableRow(address, price, comments);
}
var header = document.createElement("h2");
var headerText = document.createTextNode("Results:");
header.appendChild(headerText);
document.getElementById("header").appendChild(header);
document.getElementById("resultsTable").setAttribute("border", "1");
}
function addTableRow(address, price, comments) {
var row = document.createElement("tr");
var cell = createCellWithText(address);
row.appendChild(cell);
cell = createCellWithText(price);
row.appendChild(cell);
cell = createCellWithText(comments);
row.appendChild(cell);
document.getElementById("resultsBody").appendChild(row);
}
function createCellWithText(text) {
var cell = document.createElement("td");
var textNode = document.createTextNode(text);
cell.appendChild(textNode);
return cell;
}
</script>
</head>
<body>
<form action="#" >
<select>
<option value="50000">$50,000</option>
<option value="100000">$100,000</option>
<option value="150000">$150,000</option>
</select> to
<select>
<option value="100000">$100,000</option>
<option value="150000">$150,000</option>
<option value="200000">$200,000</option>
</select>
<input type="button" value="Search" onclick="doSearch();"/>
</form>
<span id="header"></span>
<table id="resultsTable" width="75%" border="0">
<tbody id="resultsBody"></tbody>
</table>
</body>
</html>
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