for ( custTrans = CustTrans_DS.getFirst(); custTrans; custTrans = CustTrans_ds.getNext() )
{
totalAmountMST += custTrans.AmountMST;
}
for ( custTrans = CustTrans_DS.getFirst(); custTrans; custTrans = CustTrans_ds.getNext() )
{
totalAmountMST += custTrans.AmountMST;
}