<!--
function Login(){
var done=0;
var username=document.login.username.value;
username=username.toLowerCase();
var password=document.login.password.value;
password=password.toLowerCase();

if (username=="professor2009" && password=="a123456") { window.open('http://www.afbrasilia.org.br/professores/apresentacao.html','','width=750,height=900,scrollbars=yes'); done=1; }
if (username=="usuario3" && password=="senha3") { window.open('http://pagina_de_destino.html','','width=750,height=500,scrollbars=yes'); done=1; }
if (username=="usuario4" && password=="senha4") { window.open('http://pagina_de_destino.html','','width=750,height=500,scrollbars=yes'); done=1; }
if (username=="usuario5" && password=="senha5") { window.open('http://pagina_de_destino.html','','width=750,height=500,scrollbars=yes'); done=1; }
if (username=="usuario6" && password=="senha6") { window.open('http://pagina_de_destino.html','','width=750,height=500,scrollbars=yes'); done=1; }
if (username=="usuario7" && password=="senha7") { window.open('http://pagina_de_destino.html','','width=750,height=500,scrollbars=yes'); done=1; }


if (done==0) { alert(" Senha ou usuário incorreta ."); }
}
//-->