/*类名：AJAX

创建方法：var ajaxobj=new AJAX;，如果创建失败则返回false

属性：method - 请求方法，字符串，POST或者GET，默认为POST
　　　url - 请求URL，字符串，默认为空
　　　async - 是否异步，true为异步，false为同步，默认为true
　　　content - 请求的内容，如果请求方法为POST需要设定此属性，默认为空
backtext -　默认true当backtext=true时返回XMLHttp.responseText为false时返回XMLHttp.responseXML　
gettext 　-　返回值
　　　callback - 回调函数，即返回响应内容时调用的函数，默认为直接返回，回调函数有一个参数为XMLHttpRequest对象，即定义回调函数时要这样：function mycallback(xmlobj)

方法：send() - 发送请求，无参数

*/

function AJAX() {
var XMLHttp = false;
var ObjSelf;
ObjSelf=this;
try { XMLHttp=new XMLHttpRequest; }
catch(e) {
try { XMLHttp=new ActiveXObject("MSXML2.XMLHttp"); }
catch(e2) {
try { XMLHttp=new ActiveXObject("Microsoft.XMLHttp"); }
catch(e3) { XMLHttp=false; }
}
}
if (!XMLHttp) return false;
this.method="POST";
this.url=""
this.url += (this.url.indexOf("?") >= 0) ? "&nowtime=" + new Date().getTime():"?nowtime=" + new Date().getTime();
this.async=true;
this.data="";
ObjSelf.loadid=""
this.backtext=true
this.callback=function() {return;}

this.send=function() {
if(!this.method||!this.url||!this.async) return false;
XMLHttp.open (this.method, this.url, this.async);
if(this.method=="POST"){
XMLHttp.setRequestHeader("Content-Length",(this.data).length);
XMLHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
}

XMLHttp.onreadystatechange=function() {
if(XMLHttp.readyState==4) {
//alert(ObjSelf.loadid);
if (ObjSelf.loadid!="") $CS(ObjSelf.loadid,"none");
//window.status="";
if(XMLHttp.status==200) {
ObjSelf.callback();
}
}
else {
if (ObjSelf.loadid!="") $CS(ObjSelf.loadid,"block");
//window.status="状态：["+XMLHttp.readyState+"]正在加载......";
}
}

if(this.method=="POST") XMLHttp.send(this.data);
else XMLHttp.send(null);
}

this.gettext=function(){
if(XMLHttp.readyState==4) {
if(XMLHttp.status==200) {
if (this.backtext==true){
return XMLHttp.responseText;
}else{
return XMLHttp.responseXML;
}
}
}
}
}

//打开和关闭左栏
function $SHleft(id){
if($(id).style.display=='none'){
$(id).style.display='block';
$("content").style.width='550px';
$F("sh","隐藏左栏");
}
else{
$(id).style.display='none';
$("content").style.width='750px';
$F("sh","打开左栏");
}
}
//打开和关闭评论
function $PL(id,plid){
if($("rp"+id).style.display=='none'){
$("rp"+id).style.display='block';
$F("pl"+id,"隐藏评论");
replycon(id,"rp"+id);
}
else{
$("rp"+id).style.display='none';
$F("pl"+id,"查看评论");
}
}

//显示日志
function show(id,pageid,rq){
var ajaxobj=new AJAX();
ajaxobj.method="GET";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=show&sid="+id+"&rq="+escape(rq)+"&page="+pageid;
ajaxobj.callback=function(){
$F("bkcon",ajaxobj.gettext());
}
ajaxobj.send();
}
//显示日志分类列表
function board(){
var ajaxobj=new AJAX();
ajaxobj.method="GET";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=board";
ajaxobj.callback=function(){
$F("blogcon",ajaxobj.gettext());
}
ajaxobj.send();
}

//取得评论内容
function replycon(rid,rpid){
var ajaxobj=new AJAX();
ajaxobj.method="GET";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=replycon&rid="+rid;
ajaxobj.callback=function(){
$F(rpid,ajaxobj.gettext());
}
ajaxobj.send();
}

//取得评论数量
function plnum(rid){
var ajaxobj=new AJAX();
ajaxobj.method="GET";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=plnum&rid="+rid;
ajaxobj.callback=function(){
$F("plnum"+rid,ajaxobj.gettext());
}
ajaxobj.send();
}

//加载发表评论表单
function rform(rid){
var ajaxobj=new AJAX();
ajaxobj.method="GET";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=rform&rid="+rid;
ajaxobj.callback=function(){
$F("plform"+rid,ajaxobj.gettext());
}
ajaxobj.send();
}

//添加评论内容
function savepl(rid){
var ajaxobj=new AJAX();
ajaxobj.method="POST";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=savepl&";
ajaxobj.data="rid="+rid+"&username="+escape($("username"+rid).value)+"&con="+escape($("con"+rid).value);
ajaxobj.callback=function(){
$F("tjpl"+rid,ajaxobj.gettext());
if (ajaxobj.gettext().indexOf("评论已提交成功")>=0) {
//如果评论提交成功则关闭表单、重新取得评论的数量。关闭成功提示信息
$CS("rform"+rid,"none");
plnum(rid);
pltjid="pltjsuc"+rid;
setTimeout('$CS(pltjid,"none")',1000);
}
}
ajaxobj.send();
}
//显示日历
function rl(ReqDate){
var ajaxobj=new AJAX();
ajaxobj.method="GET";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=rl&ReqDate="+ReqDate;
ajaxobj.callback=function(){
$F("calendarcon",ajaxobj.gettext());
}
ajaxobj.send();
}
//显示留言表单
function gb(){
var ajaxobj=new AJAX();
ajaxobj.method="GET";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=gb";
ajaxobj.callback=function(){
$F("gbform",ajaxobj.gettext());
}
ajaxobj.send();
}

//提交留言
function savegb(){
var gbusername=$("gbusername").value;
var gbemail=$("gbemail").value;
var gbcon=$("gbcon").value;
//alert($("gbusername").value);
//alert($("gbemail").value);
//alert($("gbcon").value);
//return false;
if (gbusername==""){
$CS("gberr","block");
$F("gberr","请署上你的大名");
setTimeout('$CS("gberr","none")',2000);
return false;
}
if (gbemail==""){
$CS("gberr","block");
$F("gberr","请写上你的邮箱");
setTimeout('$CS("gberr","none")',2000);
return false;
}
if (gbcon==""){
$CS("gberr","block");
$F("gberr","请发表你的意见");
setTimeout('$CS("gberr","none")',2000);
return false;
}
var ajaxobj=new AJAX();
ajaxobj.method="POST";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=addgb&";
ajaxobj.data="username="+escape(gbusername)+"&email="+escape(gbemail)+"&con="+escape(gbcon);
ajaxobj.send();
ajaxobj.callback=function(){
if (ajaxobj.gettext().indexOf("成功")>=0) {
$SHwin("gb");
showgb(1);
}
}
}
//显示留言
function showgb(pageid){
var ajaxobj=new AJAX();
ajaxobj.method="GET";
ajaxobj.loadid="loadnews";
ajaxobj.url="lib.asp?action=showgb&page="+pageid;
ajaxobj.callback=function(){
$F("bkcon",ajaxobj.gettext());
}
ajaxobj.send();
}