Phantomjs page load measurements

loadspeed.js

var page = require('webpage').create(),
    system = require('system'),
    address,time,tries,j;

if (system.args.length === 1) {
    console.log('Usage: loadspeed.js <some URL>');
    phantom.exit();
} else {
    address = system.args[1];
    tries = Number(system.args[2]) || 10;
    j = tries;
    time = 0;
    (function repeat(lasttime) {

      if (lasttime)
        time += lasttime;

      if (j--) {
        loadpage(address,repeat);
      } else {
        console.log ('Average Load time is ' + time/tries);
        phantom.exit();
      }
    }(0));
}

function loadpage(address,next) {
  console.log('loading address ' + address);
  var  t = Date.now();
  page.open(address, function (status) {
    if (status !== 'success') {
      console.log('FAIL to load the address');
    } else {
      t = Date.now() - t;

      console.log('Page title is ' + page.evaluate(function () {
        return document.title;
      }));
      console.log('Loading time ' + t + ' msec');
    }
    next(t);
  });
}