var now = new Date();
var then = new Date("nov 28, 2011");
var gap = then.getTime() - now.getTime();
gap = Math.floor(gap / (1000 * 60 * 60 * 24));

var R = "Faltan "+ gap + " días para Chiclana de la Frontera, 65cc, 85cc, Jr. y open.";
document.write(R);