fetch_500px - 500px to imgur

// 500px post to imgur
function get_url(url,callback) {
        var r=new XMLHttpRequest();
        r.open("GET",url,true);
        //r.setRequestHeader("X-Requested-With", "XMLHttpRequest");
        //r.setRequestHeader("Accept-Encoding", "gzip");
        r.onreadystatechange=function(){
       if (this.readyState==4 && this.status==200 && callback) callback.call(this.responseText);
       }
    r.send();

}

function post_imgur(a,callback) {
var r=new XMLHttpRequest();
r.open("POST","http://176.34.162.148/jabry/imgur1.asp?u=&b=",true);
//r.open("POST","http://notebook1.lan:8000/jabry/imgur1.asp?u=&b=",true);
r.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
r.onreadystatechange=function(){if (this.readyState==4 && this.status==200) callback&&callback.call(this.responseText); }
r.send("u=" + a.join(","));
}
//var tag="editors",pages=326;

//tag="rg443/favorites",pages=925;

function fetch_500px(tag,pages) {
console.log(tag,pages);
var stack=0,stack2=0;
for (var i=1;i<=pages;i++) stack++&&get_url("http://500px.com/"+tag+"?page="+i,function(){
   var a=this.toString().match(/http:\/\/pcdn.500px.net\/\d+\/\w{40}\//g);
   if(a)a=a.map(function(v){return v+"4.jpg"});
   console.log(--stack,a&&a.length);
   stack2++
   a&&post_imgur(a,function(){console.log("imgur:",--stack2,this.toString().split("\n").length-1);});
   });
};

fetch_500px("popular",10);