jQuery.extend({
    ImpromptuDefaults: { prefix: 'jqi', buttons: { OK: true }, loaded: function() { }, submit: function() { return true; }, callback: function() { }, opacity: 0.8, zIndex: 999, overlayspeed: 1, promptspeed: 1, show: 'show', focus: 0, useiframe: false },
    SetImpromptuDefaults: function(o) {
        jQuery.ImpromptuDefaults = jQuery.extend({}, jQuery.ImpromptuDefaults, o);
    },
    prompt: function(t, m, o) {
        var o = jQuery.extend({}, jQuery.ImpromptuDefaults, o);
        alert(m);
        if (o.callback != $.undefined) o.callback();
        return ""; //jqib
    }
});