function mostra(qdiv,qprin,cor){
Div1.style.display = 'none';  //pra esconder
Div2.style.display = 'none';  //pra esconder
Div3.style.display = 'none';  //pra esconder
prin1.style.background='#FFFFFF' //antigo F1F1F1
prin2.style.background='#FFFFFF'
prin3.style.background='#FFFFFF'
qdiv.style.display = 'block'; //pra mostrar
qdiv.style.background=cor;
qprin.style.background=cor;}