Handle user hitting 'Enter' key in a ASP.NET MVC web site

I am working on a ASP.NET MVC web site that has multiple submit buttons. i.e.

    <input type="submit" name="SubmitButton" value="Reset" />
    <input type="submit" name="SubmitButton" value="OK" />
    <input type="submit" name="SubmitButton" value="Back" />

I need to allow users to quickly submitting the form by pressing the 'Enter' key. HTML standard seems to specify that the first submit button will be assumed if a user press the 'Enter' key. However, I need to make the 2nd button (i.e. the "OK") button the default button and for reasons I don't even want to talk about, changing the button order is not an option.

I googled around and I found this post about using Page.Form.DefaultButton in ASP.NET but this doesn't work with ASP.NET MVC.

I also tried the following javascript solution, while it works in Chrome but doesn't work in IE6

    $('body').keypress(function(e) {
       if (e.which === 13) {
          $("input[value='OK']").trigger('click');
       }
    });

I can think of some really extreme solutions such as going through every single controls in the form an attach the above function to them. However, I don't think that's a very neat solution so I am wondering has anyone got a better solution?