gistfile1.js

var http = require('http');
var fs = require('fs');
var parseUrl = require('url').parse;

var i = 100;
while(i > 0) {
  (function () {
    var x = i;
    var u = parseUrl("http://farm4.static.flickr.com/3557/3670453345_c38d482efb_m.jpg")

    var c = http.request(
      { host:u.hostname
      , port:u.port
      , method: 'GET'
      , path: u.pathname
      , headers: {host:u.hostname}
      }
      , function (res) {
        console.log(x)
        res.pipe(fs.createWriteStream(x + ".jpg"))
    })
    c.end();
    i--;
  })()
}