function toggle(divid)
{
    var obj = document.getElementById(divid);
    if (obj.style.display=='none') obj.style.display = 'block';
    else  obj.style.display = 'none';
}

function showdiv(divid)
{
    var obj = document.getElementById(divid);
    if (obj.style.display=='none') obj.style.display = 'block';
}

function hidediv(divid)
{
    var obj = document.getElementById(divid);
    if (obj.style.display=='block') obj.style.display = 'none';
}