https://member.tongtool.com/static/t/js/T.AjaxChain.js?%7B12%7D

1T.AjaxChain=function(){
2	this.failOnError=true;
3	this._pool=[];
4	this.push=function(ajax){
5		this._pool.push(ajax);
6	};
7	this.submit=function(){
8		var args=arguments;
9		for(var i=0,len=args.length;i<len;i++){
10			this.push(args[i]);
11		}
12		this._next();
13	};
14	this.callback=function(){
15		
16	};
17	this._next=function(){
18		var self=this;
19		var ajax=self._pool.shift();
20		if(ajax==null){
21			self.callback();
22			return;
23		};
24		ajax.callback=T.roundDevice(ajax.callback,ajax,function(invocation){
25			var str=invocation.args[0];
26			var data=T.evalJson(str);
27			var success=data["success"];
28			if(success){
29				try{
30					invocation.proceed();
31					ajax["_result_"]=data;
32				}catch(e){
33					alert(e.message);
34				}
35			}
36			if(success||!self.failOnError){
37				self._next();
38			}
39		});
40		ajax.submit();
41	};
42};
43T.AjaxChain.getInstance=function(){
44	var chain=new T.AjaxChain();
45	return chain;
46};