$tax_details = getTaxDetailsForProduct($productid, 'available_associated');
} elseif ($_REQUEST['isDuplicate'] == 'true') {
    $retrieve_taxes = true;
    $productid = $_REQUEST['record'];
    $tax_details = getTaxDetailsForProduct($productid, 'available_associated');
} else {
    $tax_details = getAllTaxes('available');
}
for ($i = 0; $i < count($tax_details); $i++) {
    $tax_details[$i]['check_name'] = $tax_details[$i]['taxname'] . '_check';
    $tax_details[$i]['check_value'] = 0;
}
//For Edit and Duplicate we have to retrieve the product associated taxes and show them
if ($retrieve_taxes) {
    for ($i = 0; $i < count($tax_details); $i++) {
        $tax_value = getProductTaxPercentage($tax_details[$i]['taxname'], $productid);
        $tax_details[$i]['percentage'] = $tax_value;
        $tax_details[$i]['check_value'] = 1;
        //if the tax is not associated with the product then we should get the default value and unchecked
        if ($tax_value == '') {
            $tax_details[$i]['check_value'] = 0;
            $tax_details[$i]['percentage'] = getTaxPercentage($tax_details[$i]['taxname']);
        }
    }
}
$smarty->assign("TAX_DETAILS", $tax_details);
//Tax handling - ends
$unit_price = $focus->column_fields['unit_price'];
$price_details = getPriceDetailsForProduct($productid, $unit_price, 'available', $currentModule);
$smarty->assign("PRICE_DETAILS", $price_details);
$base_currency = 'curname' . $product_base_currency;

    $associated_prod = $INVOICE_associated_prod;
    $smarty->assign("AVAILABLE_PRODUCTS", 'true');
    $smarty->assign("MODE", $focus->mode);
} elseif (isset($_REQUEST['product_id']) && $_REQUEST['product_id'] != '' || isset($_REQUEST['opportunity_id']) && $_REQUEST['opportunity_id'] != '') {
    $smarty->assign("ASSOCIATEDPRODUCTS", $associated_prod);
    $InvTotal = getInventoryTotal($_REQUEST['return_module'], $_REQUEST['return_id']);
    $smarty->assign("MODE", $focus->mode);
    //this is to display the Product Details in first row when we create new PO from Product relatedlist
    if ($_REQUEST['return_module'] == 'Products') {
        $smarty->assign("PRODUCT_ID", vtlib_purify($_REQUEST['product_id']));
        $smarty->assign("PRODUCT_NAME", getProductName($_REQUEST['product_id']));
        $smarty->assign("UNIT_PRICE", vtlib_purify($_REQUEST['product_id']));
        $smarty->assign("QTY_IN_STOCK", getPrdQtyInStck($_REQUEST['product_id']));
        $smarty->assign("VAT_TAX", getProductTaxPercentage("VAT", $_REQUEST['product_id']));
        $smarty->assign("SALES_TAX", getProductTaxPercentage("Sales", $_REQUEST['product_id']));
        $smarty->assign("SERVICE_TAX", getProductTaxPercentage("Service", $_REQUEST['product_id']));
    }
}
if (isset($cust_fld)) {
    $smarty->assign("CUSTOMFIELD", $cust_fld);
}
$smarty->assign("ASSOCIATEDPRODUCTS", $associated_prod);
if (isset($_REQUEST['return_module'])) {
    $smarty->assign("RETURN_MODULE", vtlib_purify($_REQUEST['return_module']));
} else {
    $smarty->assign("RETURN_MODULE", "Invoice");
}
if (isset($_REQUEST['return_action'])) {
    $smarty->assign("RETURN_ACTION", vtlib_purify($_REQUEST['return_action']));
} else {
    $smarty->assign("RETURN_ACTION", "index");

$recordName = array_values(getEntityName($currentModule, $focus->id));
$recordName = $recordName[0];
$smarty->assign('NAME', $recordName);
$smarty->assign('UPDATEINFO', updateInfo($focus->id));
// Module Sequence Numbering
$mod_seq_field = getModuleSequenceField($currentModule);
if ($mod_seq_field != null) {
    $mod_seq_id = $focus->column_fields[$mod_seq_field['name']];
} else {
    $mod_seq_id = $focus->id;
}
$smarty->assign('MOD_SEQ_ID', $mod_seq_id);
//Added to display the Tax informations
$tax_details = getTaxDetailsForProduct($focus->id);
for ($i = 0; $i < count($tax_details); $i++) {
    $tax_details[$i]['percentage'] = getProductTaxPercentage($tax_details[$i]['taxname'], $focus->id);
}
$smarty->assign("TAX_DETAILS", $tax_details);
$price_details = getPriceDetailsForProduct($focus->id, $focus->unit_price, 'available_associated', $currentModule);
$smarty->assign('PRICE_DETAILS', $price_details);
$validationArray = split_validationdataArray(getDBValidationData($focus->tab_name, $tabid));
$smarty->assign('VALIDATION_DATA_FIELDNAME', $validationArray['fieldname']);
$smarty->assign('VALIDATION_DATA_FIELDDATATYPE', $validationArray['datatype']);
$smarty->assign('VALIDATION_DATA_FIELDLABEL', $validationArray['fieldlabel']);
$smarty->assign('EDIT_PERMISSION', isPermitted($currentModule, 'EditView', $record));
$smarty->assign('CHECK', $tool_buttons);
if (PerformancePrefs::getBoolean('DETAILVIEW_RECORD_NAVIGATION', true) && isset($_SESSION[$currentModule . '_listquery'])) {
    $recordNavigationInfo = ListViewSession::getListViewNavigation($focus->id);
    VT_detailViewNavigation($smarty, $recordNavigationInfo, $focus->id);
}
$smarty->assign('IS_REL_LIST', isPresentRelatedLists($currentModule));

 /**
  * Function to get Tax Class Details for this record(Product)
  * @return <Array> List of Taxes
  */
 public function getTaxClassDetails()
 {
     $taxClassDetails = $this->get('taxClassDetails');
     if (!empty($taxClassDetails)) {
         return $taxClassDetails;
     }
     $record = $this->getId();
     if (empty($record)) {
         return $this->getAllTaxes();
     }
     $taxClassDetails = getTaxDetailsForProduct($record, 'available_associated');
     $noOfTaxes = count($taxClassDetails);
     for ($i = 0; $i < $noOfTaxes; $i++) {
         $taxValue = getProductTaxPercentage($taxClassDetails[$i]['taxname'], $this->getId());
         $taxClassDetails[$i]['percentage'] = $taxValue;
         $taxClassDetails[$i]['check_name'] = $taxClassDetails[$i]['taxname'] . '_check';
         $taxClassDetails[$i]['check_value'] = 1;
         //if the tax is not associated with the product then we should get the default value and unchecked
         if ($taxValue == '') {
             $taxClassDetails[$i]['check_value'] = 0;
             $taxClassDetails[$i]['percentage'] = getTaxPercentage($taxClassDetails[$i]['taxname']);
         }
     }
     $this->set('taxClassDetails', $taxClassDetails);
     return $taxClassDetails;
 }