function menumove(id)
{
obj=document.getElementById(id);
if (obj.style.visibility=='')
{obj.style.visibility='hidden';
}

if (obj.style.visibility=='hidden')
{
obj.style.position='static';
obj.style.visibility = 'visible';
}
else
{
obj.style.visibility = 'hidden';
obj.style.position='absolute';
}
}