+//-------------------------------------------------------------------------------------------------------------
+
+function get_allocatable_from_cust_transactions($customer_id, $trans_no=null, $type=null)
+{
+ if ($trans_no != null and $type != null)
+ {
+ $sql = get_alloc_trans_sql("amt", "trans.trans_no = alloc.trans_no_from
+ AND trans.type = alloc.trans_type_from
+ AND alloc.trans_no_to=".db_escape($trans_no)."
+ AND alloc.trans_type_to=".db_escape($type)."
+ AND trans.debtor_no=".db_escape($customer_id),
+ "".TB_PREF."cust_allocations as alloc");
+ }
+ else
+ {
+ $sql = get_alloc_trans_sql(null, "round(ov_amount+ov_gst+ov_freight+ov_freight_tax+ov_discount-alloc,6) > 0
+ AND trans.type <> " . ST_CUSTPAYMENT . "
+ AND trans.type <> " . ST_BANKDEPOSIT . "
+ AND trans.type <> " . ST_CUSTCREDIT . "
+ AND trans.type <> " . ST_CUSTDELIVERY . "
+ AND trans.debtor_no=".db_escape($customer_id));
+ }
+
+ return db_query($sql." ORDER BY trans_no", "Cannot retreive alloc to transactions");
+}
+