q = 0
	quant_array = new Array()
//	blah blah blah

	a = 0
	add_array = new Array()

	s = 0
	select_array = new Array()
	select_array[s++] = 'fooforder'
	
	m = 0
	multiply_array = new Array()
	multiply_array[m++] = 'exchange'

	e = 0

	extra_array = new Array()
	extra_array[e++] = 'add'

	
	//	'that' is the form that we are talking about
	function calculate(that) {
	//	make sure that the total is reset first
		total = 0

	//	add up all the things that need multplying out
		for (i = 0; i < quant_array.length; i++) {
			subtotal = ''
			my = eval("that." + quant_array[i])
			subtotal = extract(my.options[my.options.selectedIndex].text)

	//		if it doesnt look like there is a value, then skip to the next i
			if(!subtotal)
				continue
				
			qt = eval("that.qty" + quant_array[i])
	//		if quanity isnt specified, assume 1
			if(!qt)
				mult = 1
			else
				mult =  qt.options[qt.options.selectedIndex].value
			
			total += subtotal*mult
		}

		for (i = 0; i < select_array.length; i++) {
			my = eval("that." + select_array[i])
			for (j = 0; j < my.options.length; j++) {
				if (my.options[j].selected)
					total += extract(my.options[j].text)
			}
		}
	
		
	//	add in the straight additions
		for (i = 0; i < add_array.length; i++) {
			subtotal = ''
			my = eval("that." + add_array[i])
			subtotal = extract(my.options[my.options.selectedIndex].text)
			if(!subtotal)
				continue
				
			total += subtotal
		}
		
	//	multiply by multiply_array
		for (i = 0; i < multiply_array.length; i++) {
			subtotal = ''
			my = eval("that." + multiply_array[i])
			subtotal = my.options[my.options.selectedIndex].value
			if(!subtotal)
				continue
				
			total = total * subtotal
		}
		
	//	add in extras
		for (i = 0; i < extra_array.length; i++) {
			subtotal = ''
			my = eval("that." + extra_array[i])
			if(my.type == 'checkbox') {
				if(my.checked)
					subtotal = extract(my.value)
			}
				
			if(!subtotal)
				continue
			
			total += subtotal
		}
		
		total=parseInt(total)
		that.total.value = total
	}
	
	
	function extract(txt) {
		c = txt.indexOf('$')
		if(c < 0) 
			txt = ''
		else {
			txt = txt.substring(c+1,txt.length)

	//	remove commas
			comma = txt.indexOf(',')
			if(comma) 
				txt = txt.substring(0,comma) + "" + txt.substring(comma+1,txt.length)
			
	//	cut at ]
			if(txt.indexOf(']') > 0) 
				txt = txt.substring(0,txt.indexOf(']'))

	//	remove white space
			txt *= 1
		}
		return(txt)
	}