Reveal availability although product options "Available for order" && "Show price" are disabled

[HaCos]

Hello i am trying to reveal product availability on product page although product options "Available for order" && "Show price" are disabled. 

 

In product.tpl , lines 314 - 340 looks like: 

       {if $PS_STOCK_MANAGEMENT}
                        {if ($product->quantity <= 0 && !$product->available_later && $allow_oosp) || ($product->quantity > 0 && !$product->available_now) || $PS_CATALOG_MODE}

                        {else}

                            <!-- Stock information -->
                            <div id="availability_statut" class="iconed-text">
                                <span class="availability_label">{l s='Availability'}: </span>
                                <span id="availability_value"{if $product->quantity <= 0 && !$allow_oosp} class="warning_inline"{/if}>
                                    {if $product->quantity <= 0}
                                        {if $allow_oosp}
                                            {$product->available_later}
                                        {else}
                                            {l s='This product is no longer in stock'}
                                        {/if}
                                    {else}
                                        {$product->available_now}
                                    {/if}
                                </span>
                                {hook h="displayProductDeliveryTime" product=$product}
                            </div>
                            <div class="iconed-text warning_inline" id="last_quantities"{if ($product->quantity > $last_qties || $product->quantity <= 0) || $allow_oosp || !$product->available_for_order || $PS_CATALOG_MODE} style="display: none"{/if} >
                                <span class="wpicon wpicon-info medium"></span>
                                {l s='Warning: Last items in stock!'}
                            </div>
                        {/if}
                    {/if}

There must be some javascript as well, because when i select another attribute i mentioned that id "availability_value" gets updated