function Comma(number) {
number = '' + number;
	if (number.length > 3) {
	var mod = number.length % 3;
	var output = (mod > 0 ? (number.substring(0,mod)) : '');
	
		for (i=0 ; i < Math.floor(number.length / 3); i++) {
			if ((mod == 0) && (i == 0))
			output += number.substring(mod+ 3 * i, mod + 3 * i + 3);
			else
			output+= ',' + number.substring(mod + 3 * i, mod + 3 * i + 3);
			}
		return (output);
		}
	else return number;
	}

function helpa(helpattendees) {
	if (helpattendees == "attendance")
	alert("Enter the number of people who will be attending your event.")
	}

function SizeCalcAttendees(form) {
var banquet60 = 0;
var banquet72 = 0;
var theater = 0;
var school18 = 0;
var school30 = 0;
var reception = 0;
var trade8 = 0;
var trade10 = 0;
	
	if (form.attendance.value==null||form.attendance.value.length==0){
	alert("Please enter the number of people attending.");
	return false;
	}

	else
	attendance = form.attendance.value
	form.banquet60.value = Comma (Math.round (attendance * 12.5));
	form.banquet72.value = Comma (Math.round (attendance * 12));
	form.theater.value = Comma (Math.round (attendance * 9));
	form.school18.value = Comma (Math.round (attendance * 14.5));
	form.school30.value = Comma (Math.round (attendance * 17.5));
	form.reception.value = Comma (Math.round (attendance * 9.5));
	form.trade8.value = Comma (Math.round (attendance * 160));
	form.trade10.value = Comma (Math.round (attendance * 200));
	return true;
	}

function helpb(helproom) {
	
	if (helproom == "roomsize")
	alert("Enter the size of the room")
	}
 
function SizeCalcRoomSize(form) {
var banquet60 = 0;
var banquet72 = 0;
var theater = 0;
var school18 = 0;
var school30 = 0;
var reception = 0;
var trade8 = 0;
var trade10 = 0;

	if (form.roomsize.value==null||form.roomsize.value.length==0){
	alert("Please the size of the room");
	return false;
	}

	else
	roomsize = form.roomsize.value
	form.banquet60.value = Comma (Math.round (roomsize / 12.5));
	form.banquet72.value = Comma (Math.round (roomsize / 12));
	form.theater.value = Comma (Math.round (roomsize / 9));
	form.school18.value = Comma (Math.round (roomsize / 14.5));
	form.school30.value = Comma (Math.round (roomsize / 17.5));
	form.reception.value = Comma (Math.round (roomsize / 9.5));
	form.trade8.value = Comma (Math.round (roomsize / 160));
	form.trade10.value = Comma (Math.round (roomsize / 200));
	return true;
	}