function check_publisher() {
    if($('id_publisher').value == 'other')
        $('get_publisher').show();
}

function get_publisher(value) {
    if (value == "other") {
        $('get_publisher').show();
        $('id_other_publisher').value = "";
    }
    else {
        $('get_publisher').hide();
        $('id_other_publisher').value = "Other Publisher...";
    }
}