+ my $selected_accno_full;
+ my ($accno_row) = split(/--/, $form->{"AR_amount_$i"});
+ my $item = $charts{$accno_row};
+ $selected_accno_full = "$item->{accno}--$item->{tax_id}";
+
+ my $selected_taxchart = $form->{"taxchart_$i"};
+ my ($selected_accno, $selected_tax_id) = split(/--/, $selected_accno_full);
+ my ($previous_accno, $previous_tax_id) = split(/--/, $form->{"previous_AR_amount_$i"});
+
+ if ($previous_accno &&
+ ($previous_accno eq $selected_accno) &&
+ ($previous_tax_id ne $selected_tax_id)) {
+ my $item = $taxcharts{$selected_tax_id};
+ $selected_taxchart = "$item->{id}--$item->{rate}";
+ }
+
+ $selected_taxchart = $taxchart_init unless ($form->{"taxchart_$i"});
+