I only just noticed how Google Analytics sets up gaq = gaq || [] and the ndoes gaq.push([], ...) and stuff for commands. So I wondered how I might be able to make a similar queue thing. Felt like being silly a bit too...

queue.js

var j = j || [];

j.push('first');
j.push('second.1', 'second.2');

j = (function(q){
    function J() {
        var self = this;
        self.queue = [];
        var secretKey = ((Math.random()*10e16) + new Date().getTime()).toString(36);
        self.pushEvent = document.createEvent('Event');
        self.pushEvent.initEvent('J-push-' + secretKey, true, true);
        document.addEventListener('J-push-' + secretKey, function(e){
            console.log(self.queue.shift());
        }, false);
    };
    J.prototype.push = function() {
        var self = this,
            args = [].slice.call(arguments);
        for (var i in args) {
            self.queue.push(args[i]);
            document.dispatchEvent(self.pushEvent);
        }
    };
    
    var j = new J();
    if (!!q) {
        while (q.length > 0) j.push(q.shift());
    }
    return j;
})(j);

j.push('third.1', 'third.2');
j.push('last');