function hide()
{
document.getElementById('hideDiv').style.display="none";
document.getElementById('showDiv').style.display="block";
}

function show()
{
document.getElementById('showDiv').style.display="none";
document.getElementById('hideDiv').style.display="block";

}
function change(p)
{
p.className='buttonSHover';
}

function change2(p)
{
p.className='buttonS';
}