When purchasing a non-stock item (asset), AssetID goes to wrong column in purchorderdetails table (Column name - suppliers_partno). Fixed the bug and now save the AssetID in correct column (Column name - assetid).
Fixed the Page Navigation (Go, Previous, Next) problem. This problem occurs  there are many assets and display as several pages.
PO_Items.php bug on deletion then readd to order
Fix typo in title
PO_Items.php bug on deletion then readd to order