Question

how to disable/enable a specific button by jquery ( by name )?

The button does not have ID , just this code:

<button onclick="$('ChangeAction').value='SaveAndDoOrder';" value="Bye" name="SaveAndDoOrder" type="submit">
        <i class="Icon ContinueIconTiny"></i>
        <span class="SelectedItem">Bye</span>
      </button>

Answer 1

I would recommend using ID instead of name, like:

$("#myButton").attr("disabled", true);

This will add the disabled attribute to the button which your browser will then automaticallly disable. If you want to use name you can use it like this:

$("button[name=myButton]").attr("disabled", true);