function showSTAF()
{
    if(document.getElementById("sfSendToAFriend_container").style.display=="none")
    {
        document.getElementById("sfSendToAFriend_container").style.display="block";
    }
    else
    {
        document.getElementById("sfSendToAFriend_container").style.display="block";
    }
}

function closeSTAF()
{
    document.getElementById("sfSendToAFriend_container").style.display="none";
}