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