Drupal.behaviors.bw_client_site_configuration = function(context) {
    var right_column_multimedia = $('#edit-node-display-press-release-multicolumn-multimedia');
    var left_column_multimedia = $('#edit-node-display-press-release-leftcolumn-multimedia');

    if (right_column_multimedia.is(':checked')) {
        left_column_multimedia.attr('disabled', 'disabled');
    } else if (left_column_multimedia.is(':checked')) {
        right_column_multimedia.attr('disabled', 'disabled');
    }

    right_column_multimedia.click(function() {
        bw_client_site_configuration_column_display_toggle($(this), left_column_multimedia);
    });

    left_column_multimedia.click(function() {
        bw_client_site_configuration_column_display_toggle($(this), right_column_multimedia);
    });
};

function bw_client_site_configuration_column_display_toggle(elem1, elem2) {
    if (elem1.is(':checked')) {
        elem2.attr('disabled', 'disabled');
    } else {
        elem2.removeAttr('disabled');
    }
}