function compute_age(form)
{
    today = (new Date()).getTime();
    var birthyear = form.year.value;
    var birthmonth = form.month.value - 1;
    var birthday = form.day.value;
	birthdate = (new Date(birthyear, birthmonth, birthday)).getTime();
//		age is your age in days
		age = (today - birthdate) / (1000 * 3600 * 24);
    if (age > 0.0) {
//	Mercury
        form.outputmrcday.value = int_zero( 10 * age / 58.6 ) / 10;
        form.outputmrcyear.value = int_zero( 10 * age / 87.97 ) / 10;
        if ( (age / 87.97) > 1)
	        nextmrcbday = new Date(today + (( 1 - (( age / 87.97 ) - ( parseInt( age / 87.97 )))) * 87.97 * 24 * 3600 * 1000 ));
        else
	        nextmrcbday = new Date(today + ( 1 - ( age / 87.97 )) * 87.97 * 24 * 3600 * 1000 );
        form.outputmrcbday.value = getLongDate(nextmrcbday);
//	Venus
        form.outputvnday.value = int_zero( 10 * age / 243 ) / 10;
        form.outputvnyear.value = int_zero( 10 * age / 224.7 ) / 10;
        if ( (age / 224.7) > 1)
	        nextvnbday = new Date(today + (( 1 - (( age / 224.7 ) - ( parseInt( age / 224.7 )))) * 224.7 * 24 * 3600 * 1000 ));
        else
	        nextvnbday = new Date(today + ( 1 - ( age / 224.7 )) * 224.7 * 24 * 3600 * 1000 );
        form.outputvnbday.value = getLongDate(nextvnbday);
//	Earth
        form.outputearthday.value = int_zero( 10 * age ) / 10;
        form.outputearthyear.value = int_zero( 10 * age / 365.26 ) / 10;
        if ( (age / 365.26) > 1)
	        nextearthbday = new Date(today + (( 1 - (( age / 365.26 ) - ( parseInt( age / 365.26 )))) * 365.26 * 24 * 3600 * 1000 ));
        else
	        nextearthbday = new Date(today + ( 1 - ( age / 365.26 )) * 365.26 * 24 * 3600 * 1000 );
        form.outputearthbday.value = getLongDate(nextearthbday);
//	Mars
        form.outputmarsday.value = int_zero( 10 * age / 1.03 ) / 10;
        form.outputmarsyear.value = int_zero( 10 * age / 686.98 ) / 10;
        if ( (age / 686.98) > 1)
	        nextmarsbday = new Date(today + (( 1 - (( age / 686.98 ) - ( parseInt( age / 686.98 )))) * 686.98 * 24 * 3600 * 1000 ));
        else
	        nextmarsbday = new Date(today + ( 1 - ( age / 686.98 )) * 686.98 * 24 * 3600 * 1000 );
        form.outputmarsbday.value = getLongDate(nextmarsbday);
//	Jupiter
        form.outputjupday.value = int_zero( 10 * age / 0.41 ) / 10;
        form.outputjupyear.value = int_zero( 100 * age / 4332.71 ) / 100;
        if ( (age / 4332.71) > 1)
	        nextjupbday = new Date(today + (( 1 - (( age / 4332.71 ) - ( parseInt( age / 4332.71 )))) * 4332.71 * 24 * 3600 * 1000 ));
        else
	        nextjupbday = new Date(today + ( 1 - ( age / 4332.71 )) * 4332.71 * 24 * 3600 * 1000 );
        form.outputjupbday.value = getLongDate(nextjupbday);
//	Saturn
        form.outputsatday.value = int_zero( 10 * age / 0.45 ) / 10;
        form.outputsatyear.value = int_zero( 100 * age / 10759.5 ) / 100;
        if ( (age / 10759.5) > 1)
        	nextsatbday = new Date(today + (( 1 - (( age / 10759.5 ) - ( parseInt( age / 10759.5 )))) * 10759.5 * 24 * 3600 * 1000 ));
        else
        	nextsatbday = new Date(today + ( 1 - ( age / 10759.5 )) * 10759.5 * 24 * 3600 * 1000 );
		form.outputsatbday.value = getLongDate(nextsatbday);
//	Uranus
        form.outputurday.value = int_zero( 10 * age / 0.72 ) / 10;
        form.outputuryear.value = int_zero( 100 * age / 30685 ) / 100;
        if ( (age / 30685) > 1)
	        nexturbday = new Date(today + (( 1 - (( age / 30685 ) - ( parseInt( age / 30685 )))) * 30685 * 24 * 3600 * 1000 ));
        else
	        nexturbday = new Date(today + ( 1 - ( age / 30685 )) * 30685 * 24 * 3600 * 1000 );
        form.outputurbday.value = getLongDate(nexturbday);
//	Neptune
        form.outputnepday.value = int_zero( 10 * age / 0.67 ) / 10;
        form.outputnepyear.value = int_zero( 100 * age / 60190 ) / 100;
        if ( (age / 60190) > 1)
	        nextnepbday = new Date(today + (( 1 - (( age / 60190 ) - ( parseInt( age / 60190 )))) * 60190 * 24 * 3600 * 1000 ));
        else
	        nextnepbday = new Date(today + ( 1 - ( age / 60190 )) * 60190 * 24 * 3600 * 1000 );
        form.outputnepbday.value = getLongDate(nextnepbday);
//	Pluto
        form.outputpltday.value = int_zero( 10 * age / 6.39 ) / 10;
        form.outputpltyear.value = int_zero( 1000 * age / 90800 ) / 1000;
        if ( (age / 90800) > 1)
	        nextpltbday = new Date(today + (( 1 - (( age / 90800 ) - ( parseInt( age / 90800 )))) * 90800 * 24 * 3600 * 1000 ));
        else
	        nextpltbday = new Date(today + ( 1 - ( age / 90800 )) * 90800 * 24 * 3600 * 1000 );
        form.outputpltbday.value = getLongDate(nextpltbday);
    }}function getLongDate(dateObj)
{
	theDay = dayNames[dateObj.getDay()+1];
	theMonth = monthNames[dateObj.getMonth()+1];
	theDate = dateObj.getDate();
	theYear = dateObj.getFullYear();
	return ""+theDay+", "+theMonth+" "+theDate+", "+theYear
}

monthNames = new Array(13);
monthNames[1]  = "Jan";
monthNames[2]  = "Feb";
monthNames[3]  = "Mar";
monthNames[4]  = "Apr";
monthNames[5]  = "May";
monthNames[6]  = "Jun";
monthNames[7]  = "Jul";
monthNames[8]  = "Aug";
monthNames[9]  = "Sep";
monthNames[10] = "Oct";
monthNames[11] = "Nov";
monthNames[12] = "Dec";

dayNames = new Array(8)
dayNames[1]  = "Sun";
dayNames[2]  = "Mon";
dayNames[3]  = "Tues";
dayNames[4]  = "Wed";
dayNames[5]  = "Thur";
dayNames[6]  = "Fri";
dayNames[7]  = "Sat";

// Function to return 0 if result is <1
function int_zero(x)
{
	if ( x < 1 )
		return 0 ;
	else
		return parseInt( x ,10 );
}