function abre_contato(){
document.getElementById('contato').style.visibility="visible";
}
function fecha_contato(){
document.getElementById('contato').style.visibility="hidden";
}
function abre_pedidos(){
document.getElementById('pedidos').style.visibility="visible";
}
function fecha_pedidos(){
document.getElementById('pedidos').style.visibility="hidden";
}
function abre_mural(){
document.getElementById('mural').style.visibility="visible";
}
function fecha_mural(){
document.getElementById('mural').style.visibility="hidden";
}
function abre_programacao(){
document.getElementById('programacao').style.visibility="visible";
}
function fecha_programacao(){
document.getElementById('programacao').style.visibility="hidden";
}