How to target dialog buttons/Add ids

Question

I have a modal dialog. I want one button to be disabled and then later enabled. I plan to do this by adding an id to the button and then using that id to use the add/remove attribute disabled. If there is another way I am open to suggestions. Here is some sample code:

$('#navDialog').dialog({
        modal:true,
        autoOpen:false,
        height: 'auto',
        width: 'auto',
        title: "Category Editor",
        buttons: {
            "Delete": function(){somethingMore();},
            "Edit": function(){something();},
            "Confirm":function(){importantSomething();}
        },
        draggable: true,
        resizable: false
    });

I want to be able to control the Confirm button.