function dp(price) 
{
   string = "" + price;
   number = string.length - string.indexOf('.');
   if (string.indexOf('.') == -1)
      return string + '.00';
   if (number == 1)
      return string + '00';
   if (number == 2)
      return string + '0';
   if (number == 3)
      return string.substring(0,string.length-number+3);
return string;
}

function calculate()
{
document.orderform.OrderClOutCost.value = dp((document.orderform.price1.value)*(document.orderform.OrderClOutUnitsOrdered.value))
document.orderform.OrderPetrox1Cost.value = dp((document.orderform.price2.value)*(document.orderform.OrderPetrox1UnitsOrdered.value))
document.orderform.OrderPetrox2Cost.value = dp((document.orderform.price3.value)*(document.orderform.OrderPetrox2UnitsOrdered.value))
document.orderform.OrderPetrox3Cost.value = dp((document.orderform.price4.value)*(document.orderform.OrderPetrox3UnitsOrdered.value))
document.orderform.OrderPetroxECCost.value = dp((document.orderform.priceEC.value)*(document.orderform.OrderPetroxECUnitsOrdered.value))
document.orderform.OrderPetroxDNCost.value = dp((document.orderform.priceDN.value)*(document.orderform.OrderPetroxDNUnitsOrdered.value))
document.orderform.OrderMunoxCost.value = dp((document.orderform.priceMunox.value)*(document.orderform.OrderMunoxUnitsOrdered.value))
document.orderform.OrderOxyCost.value = dp((document.orderform.priceOS.value)*(document.orderform.OrderOxyUnitsOrdered.value))
// document.orderform.OrderBoosterCost.value = dp((document.orderform.price5.value)*(document.orderform.OrderBoosterUnitsOrdered.value))
document.orderform.OtherCost.value = dp((document.orderform.price6.value)*(document.orderform.OtherUnitsOrdered.value))

document.orderform.subtotal.value = dp(eval(document.orderform.OrderClOutCost.value) + eval(document.orderform.OrderPetrox1Cost.value) + eval(document.orderform.OrderPetrox2Cost.value) + eval(document.orderform.OrderPetrox3Cost.value) + eval(document.orderform.OrderPetroxECCost.value) + eval(document.orderform.OrderPetroxDNCost.value) + eval(document.orderform.OrderMunoxCost.value) + eval(document.orderform.OrderOxyCost.value) + eval(document.orderform.OtherCost.value))

document.orderform.OrderTOTAL.value = dp((document.orderform.subtotal.value))
}