gistfile1.js

var evtW = {};

function evtWait(name) {
  var e = evtW[name];
  if (!e) return false;
  if (e.ready()) {
    clearTimeout(e.timeout);
    for (i = 0 ; i < e.list.length ; i++) e.list[i]();
    delete evtW[name];
  } else e.timeout = setTimeout("evtWait('"+name+"')", e.interval);
}

function evtWaitStart (a) {
  if (!evtW[a.name]) evtW[a.name] = { ready: a.ready, interval: a.interval, list: new Array() };
  evtW[a.name].list.push(a.on_ready);
  evtWait(a.name);
}

function on_ready (f) {
  evtWaitStart({
    name: 'jQuery',
    ready: function () { return typeof(jQuery) != 'undefined' },
    on_ready: function () { jQuery(document).ready(f) },
    interval: 100
  });
}