function roundDollar(anAmount)

		{

			// rounds total to two decimal places

			anAmount = "" + ((Math.round(anAmount * 100)) / 100);

			

			dec1 = anAmount.substring(anAmount.length-3, anAmount.length-2);

			dec2 = anAmount.substring(anAmount.length-2, anAmount.length-1);



			if (dec1 != '.') { // adds trailing zeroes if necessary

				if (dec2 == '.') anAmount += "0";

				else anAmount += ".00";

			}

			return anAmount;

		}



		function resetForm()

		{

			window.status='Hit resetForm function';

			document.savingsForm.herdSizeField.value 		=  100;

			

			document.savingsForm.bioBaseField.value			=  "0.33";

			document.savingsForm.palpBaseField.value		=  "1.67";

			

			document.savingsForm.bioSuppliesField.value		=  "0.50";

			document.savingsForm.palpSuppliesField.value	=  "0.10";

			

			document.savingsForm.bioTravelField.value		=  "0.00";

			document.savingsForm.palpTravelField.value		=  "0.00";

			

			document.savingsForm.bioDeathField.value		=  "0.00";

			document.savingsForm.palpDeathField.value		=  "1.44";

						

			document.savingsForm.bioInaccurateField.value	=  "0.00";

			document.savingsForm.palpInaccurateField.value	=  "2.00";

			

			document.savingsForm.bioLabField.value			=  "1.95";

			document.savingsForm.palpLabField.value			=  "0.00";

			

			document.savingsForm.bioRecordField.value 		= "0.01";

			document.savingsForm.palpRecordField.value		= "0.16";

			

			document.savingsForm.differenceField.value		= "";

			

			document.savingsForm.bioTotalField.value		= "";

			document.savingsForm.palpTotalField.value		= "";

			

			document.savingsForm.herdSizeField.focus();

			document.savingsForm.herdSizeField.select();

		}



		function calculateSavings()

		{

			var herdSize 				= document.savingsForm.herdSizeField.value;

			var bioBaseCost 			= parseFloat(   document.savingsForm.bioBaseField.value);

			var palpBaseCost 			= parseFloat(   document.savingsForm.palpBaseField.value);

			var bioSuppliesCost 		= parseFloat(   document.savingsForm.bioSuppliesField.value);

			var palpSuppliesCost 		= parseFloat(   document.savingsForm.palpSuppliesField.value);

			var bioTravelCost 			= parseFloat(   document.savingsForm.bioTravelField.value);

			var palpTravelCost 			= parseFloat(   document.savingsForm.palpTravelField.value);

			var bioDeathCost 			= parseFloat(   document.savingsForm.bioDeathField.value);

			var palpDeathCost 			= parseFloat(   document.savingsForm.palpDeathField.value);

			var bioInaccurateCost		= parseFloat(   document.savingsForm.bioInaccurateField.value);

			var palpInaccurateCost 		= parseFloat(   document.savingsForm.palpInaccurateField.value);

			var bioLabCost 				= parseFloat(   document.savingsForm.bioLabField.value);

			var palpLabCost 			= parseFloat(   document.savingsForm.palpLabField.value);

			var bioRecordCost 			= parseFloat(   document.savingsForm.bioRecordField.value);

			var palpRecordCost 			= parseFloat(   document.savingsForm.palpRecordField.value);

			

			var bioTotal	= (herdSize * (bioBaseCost + bioSuppliesCost + bioDeathCost + bioInaccurateCost + bioLabCost + bioRecordCost)) + bioTravelCost;

			var palpTotal	= (herdSize * (palpBaseCost + palpSuppliesCost + palpDeathCost + palpInaccurateCost + palpLabCost + palpRecordCost)) + palpTravelCost;



			document.savingsForm.bioTotalField.value = roundDollar(bioTotal);

			document.savingsForm.palpTotalField.value = roundDollar(palpTotal);

			

			document.savingsForm.differenceField.value = roundDollar(Math.abs(bioTotal - palpTotal));



		}