blocking function depend non-blocking function

blocking-jquery

// XHR lib use jquery

// jsonp url
var url = "http://www.google.com/jsonp/search.html"

// query keys
var array = new Array("google.com","baidu.com","yahoo.com","bing.com","soso.com");

//$.getJSON is a non-blocking function,load jsonp data here
function nonBlockingLoad(o){
  $.getJSON(url+"?query="+o+"&type=text&nodeNo=87&callback=?",function(data){
    if(data.pass){
      //TODO
    }else{
      blockingInvoke();
    }
  });
}

// This is a normal blocking function
function blockingInvoke(){
  var item = array.pop();
  if(item){
    nonBlockingLoad(obj);
  }
}

// trigger
$("#btn").bind('click',function(){
  blockingInvoke();
}