function openBox (box, closeDiv, openDiv)
{
document.getElementById(box).style.display = "block";
document.getElementById(closeDiv).style.display = "block";
document.getElementById(openDiv).style.display = "none";
}

function closeBox (box, closeDiv, openDiv)
{
document.getElementById(box).style.display = "none";
document.getElementById(closeDiv).style.display = "none";
document.getElementById(openDiv).style.display = "block";
}