JS - ReferenceError: product_edit is not defined [closed]

We have an old project PHP and JS that worked on Wamp 2.2. with no errors. I do not know much about JS or PHP and we need to make a small change.

To update the project, the idea is to update to wampserver 3.0 , but the same code started to generate an error that I think has to do with updating made from Wamp .

On the screen where products are selected, the function that is called when clicking on the product line to edit it, now returns an error as if it were not defined:

ReferenceError: produto_editar is not defined

Reference in the table:

<a class="ir editar" onclick="produto_editar('.$res['id_produto'].');" > > <b>title="Editar dados do produto">Editar registro</a>

Function:

//Função envia página edição do produto
function paciente_editar(valor){                     
    var pedido_request = new Request({
        'method':'post',
        'noCache':false,
        onComplete:function(a){
            location.href ="cadastro_produto.php?acao=editar&id=" + valor;
        }
    });
    pedido_request.send('');                    
}