jQuery.ajaxRequestDialog = function(url, data, callback) {
    $('#confirm').modal({
        closeHTML: "<a href='#' title='Close' class='modal-close'>x</a>",
        overlayId: 'confirm-overlay',
        containerId: 'confirm-container'
    });
    $.ajax({
        url: url,
        data: data,
        dataType: 'json',
        success: callback
    });
}