I have some view like this:

[CODE]

    <%= form_tag( riepilogo_path, method: "post", id: "sel") do %>

    <% for posti in @postis %>

        <%= check_box_tag "posti_ids[]", posti.id %>

        <%=h posti.numero %>

    <% end %>

    <%= submit_tag "OK"%>

    <% end %>

I want to check checkbox and keep checked after submit and refresh or reload a page. I write jquery code like so. But it is not works.

[/CODE]

[CODE]

        $(document).ready(function() 

    {  

     $("#sel").click( function(){

            var chkId= [];

            

            $("#posti_ids_:checked").each(function() 

            {

              chkId.push( $(this).val());

              

              a=chkId.length;

              localStorage.setItem(chkId, chkId.checked);

              chkId.checked = localStorage.getItem(chkId) === 'true' ?      

      true:false;

            });

            

           

        

          });

    });

[/CODE]

What is wrong here?

Thank you!