function hideItem(id) 
{
    var elm = document.getElementById(id);
    elm.style.display = "none";
}

function showItemInline(id)
{
    var elm = document.getElementById(id);
    elm.style.display = "inline";
}

function showItemBlock(id) {
    var elm = document.getElementById(id);
    elm.style.display = "block";
}

function findElement(element_id) {
    if (document.getElementById && document.getElementById(element_id)) {
        return document.getElementById(element_id);
    }
    else {
        return false;
    }
}

function hideElement(elements) {
    var elementArray = elements.split(',');
    for (i = 0; i < elementArray.length; i++) {
        element = findElement(elementArray[i])
        if (element) {
            element.style.display = 'none';
        }
        else {
            return false;
        }
    }
    return false;
}

function showElement(elements) {
    var elementArray = elements.split(',');
    for (i = 0; i < elementArray.length; i++) {
        element = findElement(elementArray[i])
        if (element) {
            element.style.display = '';
        }
        else {
            return false;
        }
    }
    return false;
}