function toggleCheck(toggleItemIds, checked)
{
    for (var i = 0; i < toggleItemIds.length; i++) {
        var element = document.getElementById(toggleItemIds[i]);
        if (element)
            element.checked = checked;
    }
}

function toggleVisible(imgId, toggleItemIds)
{
    var img = document.getElementById(imgId);
    if (!img) return;

    if (!img.checked)
        img.checked = true;
    else
        img.checked = false;

    if (img.checked)
        img.src = '/_layouts/avista/images/icons/plus.gif';
    else
        img.src = '/_layouts/avista/images/icons/minus.gif';        

    for (var i = 0; i < toggleItemIds.length; i++) {
        var element = document.getElementById(toggleItemIds[i]);
        if (element)
        element.style.display = (img.checked) ? 'none' : 'block';
    }
}