JavaScript XML operation encapsulation class_javascript skills

function XMLObject()
{
this.isIE= true;
if (window.ActiveXObject){isIE=true;}else{isIE=false;}
var node_xml;
var xmlDoc;
if (isIE){
xmlDoc = new ActiveXObject("Msxml2.DOMDocument");
}
else{
if (document.implementation && document.implementation.createDocument){
xmlDoc = document.implementation.createDocument("","" ,null);
}
}
xmlDoc.async = false;
xmlDoc.resolveExternals = false;
xmlDoc.validateOnParse = false;
xmlDoc.preserveWhiteSpace = true;
//Create XML object (XML string) from string
this.LoadXMLForString=function(XMLStr)
{
if(isIE)
{
xmlDoc.loadXML(XMLStr);
}
else
{
var oParser = new DOMParser();
xmlDoc = oParser.parseFromString(XMLStr,"text/xml");
}
}
//Create XML file from external file (file path)
this.getXMLForURL=function(url)
{
//xmlDoc.load(url);
if (isIE){
xmlDoc.load(url);
}
else
{
xmlDoc = getXML(url).responseXML;
}
}
//Get node bytes Point
this.getXMLArray=function (name) {
var keys = name.split('.');
var node = xmlDoc.documentElement; // Get the root node
var rtn = new Array();
var n = 0;
for(var i=0; ivar children = node.childNodes; // Get child node
var key = keys[i];
for(var k=0; kvar child = childrens[k];
if(child.nodeName == key) { // Determine whether the child node conforms to
if(i == keys.length-1) {
rtn[n] = child;
n ;
} else {
node = child;
break;
}
}
}
}
node_xml=rtn;
return rtn;
}
//Get node content
this .getNodeValue=function(name)
{
return this.getValue(xmlDoc,name);
}
//Get the content of the child node under the node according to the node
this.getValue=function(node , name)
{
var keys = name.split('.');
for(var i=0; i{
var children = node.childNodes; // Get child nodes
var key = keys[i];
for(var k=0; k{
var child = childrens[ k];
if(child.nodeName == key)
{ // Determine whether the child node conforms to
if(child.childNodes.length == 1)
{
// If There is no byte point, return value
if(!window.ActiveXObject)
{
return children[k].textContent;
}
else
{
return children[ k].text
}
}
else
{
// There are also child nodes, continue to analyze
node = child;
break;
}
}
}
}
return "";
}
function GetXMLHTTP()
{
var xmlhttp;
if (window.ActiveXObject){
try{xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");}
catch (e){xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");}
}else if (window.XMLHttpRequest)
{xmlhttp=new XMLHttpRequest();}
return xmlhttp;
}
function getXML(url){
var xmlHttp=GetXMLHTTP();
if (xmlHttp!=null){
xmlHttp.open("GET",url,false);
xmlHttp.send(null);
}else{
alert("Your browser does not support XMLHTTP.11");
return false;
}
return xmlHttp;
}
}

var strXML=" Little Pig27 Xiaoxia26Xiaozhang 25";

var XMLObj=new XMLObject();
XMLObj.LoadXMLForString(strXML)
//XMLObj .getXMLForURL("test.xml");

var list = XMLObj.getXMLArray( 'user');//Get the node

document.write(XMLObj.getNodeValue('ekuy.user .name.cnname'));//Get the node content directly

//Loop the node to get the child node content under the node
for(var i=0; ivar obj = list[i];
document.write(XMLObj.getValue(obj, 'name.cnname'));
document.write(XMLObj.getValue(obj, 'age'));
document.write('
');
}