Help understanding jQuery button enable/disable code

Question

I grabbed this code form JCarousel and just trying to understand these lines below. I\'m new to jQuery and not that great at JavaScript so I am not sure what is jQuery and

Answer 1

Ok guys, I'd like to bring my share to this topic, and tell you about the easiest way to disable clicked dialog button. Here goes:

$("#dialog-selector").dialog({
    title: "Dialog",
    // Other options
    buttons: {
        "Ок": function(e) {
            $(e.currentTarget).attr("disabled", true);
        }
    }
});