// JavaScript Document

var value_packs_cost = '60';
var student_packs_cost = '20';
var one_or_two_bed_cost = '40';  


function quantity() {
	
	document.getElementById("student_packs_total_cost").value = (document.getElementById("student_packs_quantity").value*student_packs_cost).toFixed(2);
	document.getElementById("one_or_two_bed_total_cost").value = (document.getElementById("one_or_two_bed_quantity").value*one_or_two_bed_cost).toFixed(2);
	document.getElementById("value_packs_total_cost").value = (document.getElementById("value_packs_quantity").value*value_packs_cost).toFixed(2); 

total();
}


function total() {
	
	document.getElementById("packs_total").value =
	((document.getElementById("student_packs_total_cost").value*1)+ 
	(document.getElementById("one_or_two_bed_total_cost").value*1)+ 
	(document.getElementById("value_packs_total_cost").value*1)).toFixed(2) 
}