function showmenu(elmnt)
{
document.getElementById(elmnt).style.visibility="visible"
}
function hidemenu(elmnt)
{
document.getElementById(elmnt).style.visibility="hidden"
}



function showmenu(elmnt)
{
document.getElementById(elmnt).style.visibility="visible"
}
function hidemenu(elmnt)
{
document.getElementById(elmnt).style.visibility="hidden"
}

function DivSetVisible(s1,s2) { 
document.getElementById(s1).style.visibility = "visible"; 
document.getElementById(s2).style.visibility = "visible"; 
} 
function DivSetHidden(s1,s2) { 
document.getElementById(s1).style.visibility = "hidden"; 
document.getElementById(s2).style.visibility = "hidden"; 
}