Interval.js

var Interval = function( fn, delay ) {
	this.id = null;
	this.fn = fn;
	this.delay = delay;
};	

Interval.prototype = {

	start: function() {
		if (this.id === null) this.id = setInterval(this.fn, this.delay);
		return this;
	},

	stop: function() {
		clearInterval(this.id);
		this.id = null;
		return this;
	},

	started: function() {
		return this.id !== null;
	}
};

Interval.sample.js

var numero_de_execucoes = 1;

var i = new Interval(function() {
	if(numero_de_execucoes >= 10 && i.started()) i.stop();
	console.log(numero_de_execucoes++);
}, 1000);

i.start();