Help with dialog buttons

Help with dialog buttons


My apologies if this is a stupid question...I recently inherited a
jQuery dialog component and am trying to ramp up.
Here is the problem: We have 2 buttons on the dialog box -- but we
need for one of them to have a different class applied. It is
automatically styling the buttons the same...How do you apply a unique
class to a button?
Here is the function I'm using to call the dialog box:
function seDispConfirm() {
    $(function() {
        $("#dialog").dialog({
            bgiframe: true,
            resizable: false,
            height:140,
            modal: true,
            overlay: {
                backgroundColor: '#000',
                opacity: 0.5
            },
            buttons: {
                'Continue Working': function() {
                    seExtendSession();
                    $(this).dialog('close');
                },
                'Logout Now': function() {
                    seExpiresSession();
                    $(this).dialog('close');
                }
            },
            close: function() {
                $(this).dialog('destroy');
            }
        });
    });
    window.setTimeout("window.focus();", 0);
}
Is there something here that I can do to add a class to the "Logout
Now" button? Or do I have to make adjustments in the jQuery core
JavaScript?
Thanks for any help on this.