function validateForSearch (id, required) {
    var val = document.getElementById(id).value;
    if (val.length == 0)
        return required ? false : true;
    val = val.replace('%', '');
    if (val.length < 3)
        return false;
    return true;
}

function validateEmpty (id) {
    return document.getElementById(id).value.length > 0;
}