Confirm modal deletion (HTML+Ajax+PHP)

Question

I have a program here that controls a to-do list that is saved and read through the database (SQL). The main page contains a table and in each row a delete button for each table entry... I don’t know much about Ajax but I wanted to use a modal to confirm the exclusion (form sends 2 variables to another page that performs the operations of the bank: the first is the id of the entry that will be excluded; and the other would be the type of operation, in the case, exclusion).

If anyone can shed some light on how to do that.

Modal that is called when I click on "delete button":

<div class="modal fade" id="delete-modal" tabindex="-1" role="dialog" aria-labelledby="modalLabel">
    <div class="modal-dialog" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal" aria-label="Fechar"><span aria-hidden="true">&times;</span></button>
                <h4 class="modal-title" id="modalLabel">Excluir Item</h4>
            </div>
            <div class="modal-body">Deseja realmente excluir este item? </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-primary btn-ok">Sim</button>
                <button type="button" class="btn btn-default" data-dismiss="modal">N&atilde;o</button>
            </div>
        </div>
    </div>
</div>

Button "delete record":

    <td class="actions"> 
                        <button type='submit' class='btn btn-danger btn-xs' id='deleta' alt='Excluir' data-toggle="modal" data-target="#delete-modal"
                name='opbanco' value='excluir' title="Excluir"><span class="glyphicon glyphicon-trash" ></span></button>
 </td>

The input is inside a form sending the data (codigo(id) and opbanco(operacao a ser realizada)). Edit: I tried as @Guilhermenascimento suggested "var data = 'id=' + id + '&operation=opbanco';" and it does not roll, I believe I was not clear in my doubt, I will complement the code

" name='cod_prdc'>

This is the field of the form that stores the line id, and by clicking on the delete button it sends to another page (database.php) the 2 parameters through the reference name of the fields the other parameter 'opbanco' is on the delete button