ajax.js里面有内容显示效果，根据ID

var http_request = false;
var success=false;
var ShowAllListFlag=1;
var DisplayArticle=true;
function makeRequest(url,cateID) {

http_request = false;

if (window.XMLHttpRequest) { // Mozilla, Safari,...
http_request = new XMLHttpRequest();
if (http_request.overrideMimeType) {
http_request.overrideMimeType('text/xml');
}
} else if (window.ActiveXObject) { // IE
try {
http_request = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
http_request = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {}
}
}

if (!http_request) {
alert('Giving up :( Cannot create an XMLHTTP instance');
return false;
}
http_request.onreadystatechange = alertContents;
http_request.open('GET', url, false);
http_request.send(null);
if (success==true)
{
try {
cateID.innerHTML=http_request.responseText;
} catch (e) {}

success==false;
}

}

function alertContents() {

if (http_request.readyState == 4) {
if (http_request.status == 200) {
success=true;
} else {
alert('There was a problem with the request.');
}
}

}

function setCatlog(ID,Order,LeftNumber) {

var cateID=document.getElementById('Cate'+ID);
setdisplay(cateID);
if (cateID.style.display=="")
{
var url2="INCLUDE/GetSiteListFunction.asp?ID="+ID+"&Order="+Order+"&LeftNumber="+LeftNumber+"&r="+Math.random();
makeRequest(url2,cateID);
}
else
{
var url2="INCLUDE/GetSiteListFunction.asp?ID="+ID+"&RemoveID=1&r="+Math.random();
makeRequest(url2,cateID);
}
}

function setArticleList(EncodeURL,ArticleID) {

if (DisplayArticle==true)
{
try { var objArticleIDtop = document.getElementById('top'+ArticleID);
var objArticleIDbottom = document.getElementById('bottom'+ArticleID);
if (objArticleIDtop)
{
if (objArticleIDtop.style.display=="none")
{

objArticleIDtop.style.display="";
}
else
{

objArticleIDtop.style.display="none";
}
}
if (objArticleIDbottom)
{
if (objArticleIDbottom.style.display=="none")
{
var url2="INCLUDE/GetArticleFunction.asp?LinkStr="+EncodeURL+"&r="+Math.random();
makeRequest(url2,objArticleIDbottom);
objArticleIDbottom.style.display="";
}
else
{

objArticleIDbottom.style.display="none";
}
}

} catch (e) {alert(e.description);}
}
else
{
}

}


function DisplayContent(ArticleID) {

if (DisplayArticle==true)
{
try { var objArticleIDtop = document.getElementById('top'+ArticleID);
var objArticleIDbottom = document.getElementById('bottom'+ArticleID);
if (objArticleIDtop)
{
if (objArticleIDtop.style.display=="none")
{

objArticleIDtop.style.display="";
}
else
{

objArticleIDtop.style.display="none";
}
}
if (objArticleIDbottom)
{
if (objArticleIDbottom.style.display=="none")
{

objArticleIDbottom.style.display="";
}
else
{

objArticleIDbottom.style.display="none";
}
}

} catch (e) {alert(e.description);}
}
else
{
}

}

function setdisplay(cateID) {
if (cateID.style.display=="none")
{
cateID.style.display="";
cateID.innerHTML="Loading..."
}
else
{
cateID.style.display="none";
}
}

function setdisplay2(cateID) {

if (ShowAllListFlag==1)
{
cateID.style.display="";
cateID.innerHTML="Loading..."
}
else
{
cateID.style.display="none";
}
}

function ShowAllList(Order,LeftNumber,TagName) {
var obj = document.getElementsByTagName(TagName)

for (a=0;a<obj.length;a++)
{
if (obj[a].className=="SiteList")
{
obj2=obj[a].id;
var ID=obj2.replace("Cate","");
var cateID=document.getElementById(obj2);
setdisplay2(cateID);
if (cateID.style.display=="")
{
var url2="INCLUDE/GetSiteListFunction.asp?ID="+ID+"&Order="+Order+"&LeftNumber="+LeftNumber+"&r="+Math.random();
makeRequest(url2,cateID);
}
else
{
var url2="INCLUDE/GetSiteListFunction.asp?ID="+ID+"&RemoveID=1&r="+Math.random();
makeRequest(url2,cateID);
}

}

}

if (ShowAllListFlag==1)
{
ShowAllListFlag=2;
}
else
{
ShowAllListFlag=1;
}

}

function ExpandListBySession(Str,Order,LeftNumber) {
try {
var ExpandList=Str.split("|");

for (b=0;b<ExpandList.length-1;b++)
{
setCatlog(ExpandList[b],Order,LeftNumber)
}
} catch (e) {}

}