gl_db sql convert where to join

--- gl/includes/db/gl_db_bank_trans.inc    Mon Mar 10 16:17:11 2014
+++ gl/includes/db/gl_db_bank_trans.inc    Sat Jan 04 02:23:22 2014
@@ -66,17 +66,17 @@
 function get_bank_trans($type, $trans_no=null, $person_type_id=null, $person_id=null)
 {
     $sql = "SELECT bt.*, act.*,
-        IFNULL(abs(dt.ov_amount), IFNULL(ABS(st.ov_amount), bt.amount)) settled_amount,
-        IFNULL(abs(dt.ov_amount/bt.amount), IFNULL(ABS(st.ov_amount/bt.amount), 1)) settle_rate,
-        IFNULL(debtor.curr_code, IFNULL(supplier.curr_code, act.bank_curr_code)) settle_curr
+        IFNULL(ABS(dt.ov_amount), IFNULL(ABS(st.ov_amount), bt.amount)) AS settled_amount,
+        IFNULL(ABS(dt.ov_amount/bt.amount), IFNULL(ABS(st.ov_amount/bt.amount), 1)) AS settle_rate,
+        IFNULL(debtor.curr_code, IFNULL(supplier.curr_code, act.bank_curr_code)) AS settle_curr
 
         FROM ".TB_PREF."bank_trans bt
-                 LEFT JOIN ".TB_PREF."debtor_trans dt ON dt.type=bt.type AND dt.trans_no=bt.trans_no
-                 LEFT JOIN ".TB_PREF."debtors_master debtor ON debtor.debtor_no = dt.debtor_no
-                 LEFT JOIN ".TB_PREF."supp_trans st ON st.type=bt.type AND st.trans_no=bt.trans_no
-                 LEFT JOIN ".TB_PREF."suppliers supplier ON supplier.supplier_id = st.supplier_id,
-             ".TB_PREF."bank_accounts act
-        WHERE act.id=bt.bank_act ";
+                LEFT JOIN ".TB_PREF."debtor_trans dt ON dt.type=bt.type AND dt.trans_no=bt.trans_no
+                LEFT JOIN ".TB_PREF."debtors_master debtor ON debtor.debtor_no = dt.debtor_no
+                LEFT JOIN ".TB_PREF."supp_trans st ON st.type=bt.type AND st.trans_no=bt.trans_no
+                LEFT JOIN ".TB_PREF."suppliers supplier ON supplier.supplier_id = st.supplier_id
+                LEFT JOIN ".TB_PREF."bank_accounts act ON act.id = bt.bank_act
+        WHERE  1 ";
     if ($type != null)
         $sql .= " AND bt.type=".db_escape($type);
     if ($trans_no != null)
@@ -85,7 +85,7 @@
         $sql .= " AND bt.person_type_id = ".db_escape($person_type_id);
     if ($person_id != null)
         $sql .= " AND bt.person_id = ".db_escape($person_id);
-    $sql .= " ORDER BY trans_date, bt.id";
+    $sql .= " ORDER BY bt.trans_date, bt.id";
 
     return db_query($sql, "query for bank transaction");
 }