function update_item($stock_id, $description, $long_description, $category_id,
$tax_type_id, $units='', $mb_flag='', $sales_account, $inventory_account,
$cogs_account, $adjustment_account, $assembly_account, $dimension_id,
function update_item($stock_id, $description, $long_description, $category_id,
$tax_type_id, $units='', $mb_flag='', $sales_account, $inventory_account,
$cogs_account, $adjustment_account, $assembly_account, $dimension_id,