# cust_classnum (false laziness w/ elements/cust_main_dayranges.html, prepaid_income.html, cust_bill_pay.html, cust_bill_pkg.html cust_bill_pkg_referral.html, unearned_detail.html, cust_credit.html, cust_credit_refund.html, cust_main::Search::search_sql)
if ( grep { $_ eq 'cust_classnum' } $cgi->param ) {
my @classnums = grep /^\d*$/, $cgi->param('cust_classnum');
# cust_classnum (false laziness w/ elements/cust_main_dayranges.html, prepaid_income.html, cust_bill_pay.html, cust_bill_pkg.html cust_bill_pkg_referral.html, unearned_detail.html, cust_credit.html, cust_credit_refund.html, cust_main::Search::search_sql)
if ( grep { $_ eq 'cust_classnum' } $cgi->param ) {
my @classnums = grep /^\d*$/, $cgi->param('cust_classnum');