29-1.js

来自「java应用代码和章节代码。各种功能实现效果。很值」· JavaScript 代码 · 共 31 行

// XML document
var xDoc;
// retrieve XML document as document object
function loadXMLDoc(url) {
 var req;
 if (window.XMLHttpRequest) {
   req = new XMLHttpRequest();
   req.open("GET", url, false);
   req.send(null);
 } else if (window.ActiveXObject) {
  req = new ActiveXObject("Microsoft.XMLHTTP");
  if (req) {
   req.open("GET", url, false);
   req.send();
  }
 }
 if (req) {
  if (req.status == 200) {
   xDoc = req.responseXML;
   if (xDoc && typeof xDoc.childNodes != "undefined" && xDoc.childNodes.length == 0) {
     xDoc = null;
    }
   } else {
    alert("There was a problem retrieving the XML data:\n" +
    req.statusText);
   }
  } else {
   alert("Sorry, this browser isn\'t equipped to read XML data.");
 }
}