function findDay() {
  var ar = new Array();
  ar[0] = "Sunday";
  ar[1] = "Monday";
  ar[2] = "Tuesday";
  ar[3] = "Wednesday";
  ar[4] = "Thursday";
  ar[5] = "Friday";
  ar[6] = "Saturday";
  var yourDay =prompt("Enter your Birthday Using the Format Below", "May 30, 1994")
  var birthDay = new Date(yourDay);
  var day = birthDay.getDay();
  alert("You were born on " + ar[day]);
}