//General Array Function
function MakeArray(n) {
   this.length = n;
   for (var i = 1; i <=n; i++) {
     this[i] = 0;
   }
}

//Initialize Days of Week Array
days = new MakeArray(7);
days[0] = "Sabtu"
days[1] = "Minggu"
days[2] = "Senin"
days[3] = "Selasa"
days[4] = "Rabu"
days[5] = "Kamis"
days[6] = "Jumat"

//Initialize Months Array
months = new MakeArray(12);
months[1] = "January" 
months[2] = "February" 
months[3] = "Maret" 
months[4] = "April" 
months[5] = "Mei" 
months[6] = "Juni" 
months[7] = "July" 
months[8] = "Augustus"
months[9] = "September" 
months[10] = "October"
months[11] = "November"
months[12] = "December"

//Day of Week Function
function compute(form) {
   var val1 = parseInt(form.day.value, 10)
   if ((val1 < 0) || (val1 > 31)) {
      alert("Day is out of range")
   }
   var val2 = parseInt(form.month.value, 10)
   if ((val2 < 0) || (val2 > 12)) {
      alert("Month is out of range")
   }  
   var val2x = parseInt(form.month.value, 10)
   var val3 = parseInt(form.year.value, 10)
   if (val3 < 1900) {
      alert("You're that old!")
   }
   if (val2 == 1) {
      val2x = 13;
      val3 = val3-1
   }
   if (val2 == 2) {
      val2x = 14;
      val3 = val3-1
   }
   var val4 = parseInt(((val2x+1)*3)/5, 10)
   var val5 = parseInt(val3/4, 10)
   var val6 = parseInt(val3/100, 10)
   var val7 = parseInt(val3/400, 10)
   var val8 = val1+(val2x*2)+val4+val3+val5-val6+val7+2
   var val9 = parseInt(val8/7, 10)
   var val0 = val8-(val9*7)
   form.result1.value = months[val2]+" "+form.day.value +", "+form.year.value
   form.result2.value = days[val0]
}document.write('');