/*
AdvancedAJAX 1.1
(c) 2005-2006 Lukasz Lach
mail: anakin@php5.pl
www:  http://advajax.anakin.us/
http://anakin.us/
http://creativecommons.org/licenses/LGPL/2.1/
*/
function advAJAX(){
var obj=new Object();
obj.url=window.location.href;
obj.method="GET";
obj.parameters=new Object();
obj.headers=new Object();
obj.async=true;
obj.mimeType="text/xml";
obj.username=null;
obj.password=null;
obj.form=null;
obj.disableForm=true;
obj.unique=true;
obj.uniqueParameter="_uniqid";
obj.requestDone=false;
obj.queryString="";
obj.responseText=null;
obj.responseXML=null;
obj.status=null;
obj.statusText=null;
obj.aborted=false;
obj.timeout=0;
obj.retryCount=0;
obj.retryDelay=1000;
obj.tag=null;
obj.group=null;
obj.progressTimerInterval=50;
obj.xmlHttpRequest=null;
obj.onInitialization=null;
obj.onFinalization=null;
obj.onReadyStateChange=null;
obj.onLoading=null;
obj.onLoaded=null;
obj.onInteractive=null;
obj.onComplete=null;
obj.onProgress=null;
obj.onSuccess=null;
obj.onFatalError=null;
obj.onError=null;
obj.onTimeout=null;
obj.onRetryDelay=null;
obj.onRetry=null;
obj.onGroupEnter=null;
obj.onGroupLeave=null;
obj.createXmlHttpRequest=function(){
if(typeof XMLHttpRequest!="undefined")
return new XMLHttpRequest();
var xhrVersion=["MSXML2.XMLHttp.5.0","MSXML2.XMLHttp.4.0","MSXML2.XMLHttp.3.0",
"MSXML2.XMLHttp","Microsoft.XMLHttp"];
for(var i=0;i<xhrVersion.length;i++){
try{
var xhrObj=new ActiveXObject(xhrVersion[i]);
return xhrObj;}catch(e){}}
obj.raiseEvent("FatalError");
return null;};
obj._oldResponseLength=null;
obj._progressTimer=null;
obj._progressStarted=navigator.userAgent.indexOf('Opera')==-1;
obj._onProgress=function(){
if(typeof obj.onProgress=="function"&&
typeof obj.xmlHttpRequest.getResponseHeader=="function"){
var contentLength=obj.xmlHttpRequest.getResponseHeader("Content-length");
if(contentLength!=null&&contentLength!=''){
var responseLength=obj.xmlHttpRequest.responseText.length;
if(responseLength!=obj._oldResponseLength){
obj.raiseEvent("Progress",obj,responseLength,contentLength);
obj._oldResponseLength=obj.xmlHttpRequest.responseText.length;}}}
if(obj._progressStarted)return;
obj._progressStarted=true;
var _obj=this;
this.__onProgress=function(){
obj._onProgress();
obj._progressTimer=window.setTimeout(_obj.__onProgress,obj.progressTimerInterval);}
_obj.__onProgress();}
obj._onInitializationHandled=false;
obj._initObject=function(){
if(obj.xmlHttpRequest!=null){
delete obj.xmlHttpRequest["onreadystatechange"];
obj.xmlHttpRequest=null;}
if((obj.xmlHttpRequest=obj.createXmlHttpRequest())==null)
return null;
if(typeof obj.xmlHttpRequest.overrideMimeType!="undefined")
obj.xmlHttpRequest.overrideMimeType(obj.mimeType);
obj.xmlHttpRequest.onreadystatechange=function(){
if(obj==null||obj.xmlHttpRequest==null)
return;
obj.raiseEvent("ReadyStateChange",obj,obj.xmlHttpRequest.readyState);
obj._onProgress();
switch(obj.xmlHttpRequest.readyState){
case 1:obj._onLoading();break;
case 2:obj._onLoaded();break;
case 3:obj._onInteractive();break;
case 4:obj._onComplete();break;}};
obj._onLoadingHandled=
obj._onLoadedHandled=
obj._onInteractiveHandled=
obj._onCompleteHandled=false;};
obj._onLoading=function(){
if(obj._onLoadingHandled)
return;
if(!obj._retry&&obj.group!=null){
if(typeof advAJAX._groupData[obj.group]=="undefined")
advAJAX._groupData[obj.group]=0;
advAJAX._groupData[obj.group]++;
if(typeof obj.onGroupEnter=="function"&&advAJAX._groupData[obj.group]==1)
obj.onGroupEnter(obj);}
obj.raiseEvent("Loading",obj);
obj._onLoadingHandled=true;};
obj._onLoaded=function(){
if(obj._onLoadedHandled)
return;
obj.raiseEvent("Loaded",obj);
obj._onLoadedHandled=true;};
obj._onInteractive=function(){
if(obj._onInteractiveHandled)
return;
obj.raiseEvent("Interactive",obj);
obj._onInteractiveHandled=true;
if(!obj._progressStarted)
obj._onProgress();};
obj._onComplete=function(){
if(obj._onCompleteHandled||obj.aborted)
return;
if(obj._progressStarted){
window.clearInterval(obj._progressTimer);
obj._progressStarted=false;}
obj.requestDone=true;
with(obj.xmlHttpRequest){
obj.responseText=responseText;
obj.responseXML=responseXML;
if(typeof status!="undefined")
obj.status=status;
if(typeof statusText!="undefined")
obj.statusText=statusText;}
obj.raiseEvent("Complete",obj);
obj._onCompleteHandled=true;
if(obj.status==200)
obj.raiseEvent("Success",obj);else
obj.raiseEvent("Error",obj);
delete obj.xmlHttpRequest['onreadystatechange'];
obj.xmlHttpRequest=null;
if(obj.disableForm)
obj.switchForm(true);
obj._groupLeave();
obj.raiseEvent("Finalization",obj);};
obj._groupLeave=function(){
if(obj.group!=null){
advAJAX._groupData[obj.group]--;
if(advAJAX._groupData[obj.group]==0)
obj.raiseEvent("GroupLeave",obj);}};
obj._retry=false;
obj._retryNo=0;
obj._onTimeout=function(){
if(obj==null||obj.xmlHttpRequest==null||obj._onCompleteHandled)
return;
obj.aborted=true;
obj.xmlHttpRequest.abort();
obj.raiseEvent("Timeout",obj);
obj._retry=true;
if(obj._retryNo!=obj.retryCount){
obj._initObject();
if(obj.retryDelay>0){
obj.raiseEvent("RetryDelay",obj);
startTime=new Date().getTime();
while(new Date().getTime()-startTime<obj.retryDelay);}
obj._retryNo++;
obj.raiseEvent("Retry",obj,obj._retryNo);
obj.run();}else{
delete obj.xmlHttpRequest["onreadystatechange"];
obj.xmlHttpRequest=null;
if(obj.disableForm)
obj.switchForm(true);
obj._groupLeave();
obj.raiseEvent("Finalization",obj);}};
obj.run=function(){
obj._initObject();
if(obj.xmlHttpRequest==null)
return false;
obj.aborted=false;
if(!obj._onInitializationHandled){
obj.raiseEvent("Initialization",obj);
obj._onInitializationHandled=true;}
if(obj.method=="GET"&&obj.unique)
obj.parameters[encodeURIComponent(obj.uniqueParameter)]=
new Date().getTime().toString().substr(5)+Math.floor(Math.random()*100).toString();
if(!obj._retry){
for(var a in obj.parameters){
if(obj.queryString.length>0)
obj.queryString+="&";
if(typeof obj.parameters[a]!="object")
obj.queryString+=encodeURIComponent(a)+"="+encodeURIComponent(obj.parameters[a]);else{
for(var i=0;i<obj.parameters[a].length;i++)
obj.queryString+=encodeURIComponent(a)+"="+encodeURIComponent(obj.parameters[a][i])+"&";
obj.queryString=obj.queryString.slice(0,-1);}}
if(obj.method=="GET"&&obj.queryString.length>0)
obj.url+=(obj.url.indexOf("?")!=-1?"&":"?")+obj.queryString;}
if(obj.disableForm)
obj.switchForm(false);
try{
obj.xmlHttpRequest.open(obj.method,obj.url,obj.async,obj.username||'',obj.password||'');}catch(e){
obj.raiseEvent("FatalError",obj,e);
return;}
if(obj.timeout>0)
setTimeout(obj._onTimeout,obj.timeout);
if(typeof obj.xmlHttpRequest.setRequestHeader!="undefined")
for(var a in obj.headers)
obj.xmlHttpRequest.setRequestHeader(encodeURIComponent(a),encodeURIComponent(obj.headers[a]));
if(obj.method=="POST"&&typeof obj.xmlHttpRequest.setRequestHeader!="undefined"){
obj.xmlHttpRequest.setRequestHeader("Content-type","application/x-www-form-urlencoded");
obj.xmlHttpRequest.send(obj.queryString);}else if(obj.method=="GET")
obj.xmlHttpRequest.send('');};
obj.handleArguments=function(args){
if(typeof args.form=="object"&&args.form!=null){
obj.form=args.form;
obj.appendForm();}
for(a in args){
if(typeof obj[a]=="undefined")
obj.parameters[a]=args[a];else{
if(a!="parameters"&&a!="headers")
obj[a]=args[a];else
for(b in args[a])
obj[a][b]=args[a][b];}}
obj.method=obj.method.toUpperCase();};
obj.switchForm=function(enable){
if(typeof obj.form!="object"||obj.form==null)
return;
with(obj.form)
for(var nr=0;nr<elements.length;nr++)
if(!enable){
if(elements[nr]["disabled"])
elements[nr]["_disabled"]=true;else
elements[nr]["disabled"]="disabled";}else
if(typeof elements[nr]["_disabled"]=="undefined")
elements[nr].removeAttribute("disabled");};
obj.appendForm=function(){
with(obj.form){
obj.method=getAttribute("method").toUpperCase();
obj.url=getAttribute("action");
for(var nr=0;nr<elements.length;nr++){
var e=elements[nr];
if(e.disabled)
continue;
switch(e.type){
case "text":
case "password":
case "hidden":
case "textarea":
obj.addParameter(e.name,e.value);
break;
case "select-one":
if(e.selectedIndex>=0)
obj.addParameter(e.name,e.options[e.selectedIndex].value);
break;
case "select-multiple":
for(var nr2=0;nr2<e.options.length;nr2++)
if(e.options[nr2].selected)
obj.addParameter(e.name,e.options[nr2].value);
break;
case "checkbox":
case "radio":
if(e.checked)
obj.addParameter(e.name,e.value);
break;}}}};
obj.addParameter=function(name,value){
if(typeof obj.parameters[name]=="undefined")
obj.parameters[name]=value;else
if(typeof obj.parameters[name]!="object")
obj.parameters[name]=[obj.parameters[name],value];else
obj.parameters[name][obj.parameters[name].length]=value;};
obj.delParameter=function(name){
delete obj.parameters[name];};
obj.raiseEvent=function(name){
var args=[];
for(var i=1;i<arguments.length;i++)
args.push(arguments[i]);
if(typeof obj["on"+name]=="function")
obj["on"+name].apply(null,args);
if(name=="FatalError")
obj.raiseEvent("Finalization",obj);}
if(typeof advAJAX._defaultParameters!="undefined")
obj.handleArguments(advAJAX._defaultParameters);
return obj;}
advAJAX.get=function(args){
return advAJAX.handleRequest("GET",args);};
advAJAX.post=function(args){
return advAJAX.handleRequest("POST",args);};
advAJAX.head=function(args){
return advAJAX.handleRequest("HEAD",args);};
advAJAX.submit=function(form,args){
if(typeof args=="undefined"||args==null)
return -1;
if(typeof form!="object"||form==null)
return -2;
var request=new advAJAX();
args["form"]=form;
request.handleArguments(args);
return request.run();};
advAJAX.assign=function(form,args){
if(typeof args=="undefined"||args==null)
return -1;
if(typeof form!="object"||form==null)
return -2;
if(typeof form["onsubmit"]=="function")
form["_onsubmit"]=form["onsubmit"];
form["advajax_args"]=args;
form["onsubmit"]=function(){
if(typeof this["_onsubmit"]!="undefined"&&this["_onsubmit"]()===false)
return false;
if(advAJAX.submit(this,this["advajax_args"])==false)
return true;
return false;}
return true;};
advAJAX.download=function(targetObj,url){
if(typeof targetObj=="string")
targetObj=document.getElementById(targetObj);
if(!targetObj)
return -1;
advAJAX.get({
url:url,
onSuccess:function(obj){
targetObj.innerHTML=obj.responseText;}});};
advAJAX.scan=function(){
var obj=document.getElementsByTagName("a");
for(var i=0;i<obj.length;){
if(obj[i].getAttribute("rel")=="advancedajax"&&obj[i].getAttribute("href")!==null){
var url=obj[i].getAttribute("href");
var div=document.createElement("div");
div.innerHTML=obj[i].innerHTML;
div.className=obj[i].className;
var parent=obj[i].parentNode;
parent.insertBefore(div,obj[i]);
parent.removeChild(obj[i]);
advAJAX.download(div,url);}else i++;}};
advAJAX.handleRequest=function(requestType,args){
if(typeof args=="undefined"||args==null)
return -1;
var request=new advAJAX();
window.advajax_obj=request;
request.method=requestType;
request.handleArguments(args);
return request.run();};
advAJAX._defaultParameters=new Object();
advAJAX.setDefaultParameters=function(args){
advAJAX._defaultParameters=new Object();
for(a in args)
advAJAX._defaultParameters[a]=args[a];};
advAJAX._groupData=new Object();