function DoMath(){

var Units = document.frmData.Units.value
var Rate = document.frmData.Rate.value
var Lamps = document.frmData.Lamps.value
var Saved = ((Units - Rate) * Lamps)
document.frmData.Saved.value = Saved
var Kwh = document.frmData.Kwh.value
var Total = Saved * Kwh
document.frmData.Total.value = Total
}