+function get_open_balance($debtorno, $to)
+{
+ if($to)
+ $to = date2sql($to);
+ $sql = "SELECT SUM(IF(t.type = ".ST_SALESINVOICE." OR (t.type IN (".ST_JOURNAL." , ".ST_BANKPAYMENT.") AND t.ov_amount>0),
+ -abs(t.ov_amount + t.ov_gst + t.ov_freight + t.ov_freight_tax + t.ov_discount), 0)) AS charges,";
+
+ $sql .= "SUM(IF(t.type != ".ST_SALESINVOICE." AND NOT(t.type IN (".ST_JOURNAL." , ".ST_BANKPAYMENT.") AND t.ov_amount>0),
+ abs(t.ov_amount + t.ov_gst + t.ov_freight + t.ov_freight_tax + t.ov_discount) * -1, 0)) AS credits,";
+
+ $sql .= "SUM(IF(t.type != ".ST_SALESINVOICE." AND NOT(t.type IN (".ST_JOURNAL." , ".ST_BANKPAYMENT.")), t.alloc * -1, t.alloc)) AS Allocated,";
+
+ $sql .= "SUM(IF(t.type = ".ST_SALESINVOICE." OR (t.type IN (".ST_JOURNAL." , ".ST_BANKPAYMENT.") AND t.ov_amount>0), 1, -1) *
+ (abs(t.ov_amount + t.ov_gst + t.ov_freight + t.ov_freight_tax + t.ov_discount) - abs(t.alloc))) AS OutStanding
+ FROM ".TB_PREF."debtor_trans t
+ WHERE t.debtor_no = ".db_escape($debtorno)
+ ." AND t.type <> ".ST_CUSTDELIVERY;
+ if ($to)
+ $sql .= " AND t.tran_date < '$to'";
+ $sql .= " GROUP BY debtor_no";
+
+ $result = db_query($sql,"No transactions were returned");
+ return db_fetch($result);
+}
+
+function get_transactions($debtorno, $from, $to)