var now = new Date();
now.setTime(now.getTime() - 99 * 24 * 60 * 60 * 1000);
var day = now.getDay();
var date = now.getDate();
var month = now.getMonth();
var year = now.getYear();
year += (year < 1900) ? 1900 : 0;

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

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

alert(days[day] + ", " + months[month] + " " + date + ", " + year);

Notice that Sunday is the first day of the week and its index is 0. Similarly, the first month of the year is January and its numeric value is 0 as well. Also be sure to notice the Y2K solution in the script.

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