function over(aa,ab)
{
document.images[aa].src=ab
}

function out(aa,ab)
{
document.images[aa].src=ab
}


function hid()
{
ws1.style.visibility="hidden"
ws2.style.visibility="hidden"
}

function ww1()
{
ws1.style.visibility="visible"
ws2.style.visibility="hidden"
}

function ww2()
{
ws2.style.visibility="visible"
ws1.style.visibility="hidden"
}