settimeout.js

(function(global){
	var exeQueue = [];

	exeQueue.insertOrdered = function(val) {
		var l = this.length,
			order = val.order;

		while(l--) {
			if(this[l].order > order) break;
		}

		this.splice(l+1, 0, val);
	}

	function executeNext() {
		var next = exeQueue.pop();
		if (next) {
			next.callback.apply(this, next.args);
		}
	}

	global.setTimeout = function (fn, delay) {
		var runOrder = Date.now() + delay,
			args = Array.prototype.slice.call(arguments, 2),
			wrappedFn = function () {
				fn.apply(this, arguments);
				return executeNext();
			};

		exeQueue.insertOrdered({
			order : runOrder,
			callback : wrappedFn,
			args: args
		});
	};

	global.executeTimeouts = executeNext;
})(this);