<script>
function CalculateResult(form) {
var result = 0;
var amount = form.GetControl("c_Amount").GetValue();
var multiply = form.GetControl("c_FirstOperator").GetValue();
if (multiply == "" || multiply =="Single")
result = 1 * parseInt(amount);
else if (multiply == "Double")
result = 2 * parseInt(amount);
else if (multiply == "Triple")
result = 3 * parseInt(amount);
if (form.GetControl("c_Double").GetValue() == "1")
result = result * 2;
form.GetControl("c_Result").SetValue(result.toString());
}
</script>