function showPain(e)
{
    var bp = document.getElementById(e.alt.toLowerCase())
    if ( bp != null )
    {
        bp.style.display = 'block'
        document.getElementById('instruction').style.display = 'none';
    }
}
function hidePain(e)
{
    var bp = document.getElementById(e.alt.toLowerCase())
    {
        bp.style.display = 'none'
        document.getElementById('instruction').style.display = 'block';
    }
}