/* DEFAULT SCRIPTS */

// ELEMENT OBJECT

function ElementById(elementId) {
    return document.getElementById(elementId);
}

// ELEMENT PROPERTY

function VisibleById(elementId, isvisible) {
    var element = ElementById(elementId);
    if (isvisible == true)
        element.style.display = 'block';
    else
        element.style.display = 'none';
}