function makeArray(len)
{
for (var i = 0; i < len; i++) this[i] = null;
this.length = len;
}

// Array de los meses
var monthNames = new makeArray(12);
monthNames[0] = "January";
monthNames[1] = "February";
monthNames[2] = "March";
monthNames[3] = "April";
monthNames[4] = "May";
monthNames[5] = "June";
monthNames[6] = "July";
monthNames[7] = "August";
monthNames[8] = "September";
monthNames[9] = "October";
monthNames[10] = "November";
monthNames[11] = "December";

// Array de los días

var dayNames = new makeArray(7);
dayNames[0] = "Sunday";
dayNames[1] = "Monday";
dayNames[2] = "Tuesday";
dayNames[3] = "Wednesday";
dayNames[4] = "Thursday";
dayNames[5] = "Friday";
dayNames[6] = "Saturday";

var fecha = new Date();

function darFecha(){
document.write(dayNames[fecha.getDay()] + ", " + fecha.getDate() + " of " + monthNames[fecha.getMonth()] + " of " + fecha.getFullYear());
}