function mudatype(){ 
	document.getElementById("Layer2b").innerHTML=""; 
	document.getElementById("Layer2b").innerHTML="<input type=password class='campo1' name='senha' maxlength='9'>"; 
	
	
	
	
}
function logar(){
if (document.formu.senha.value == '' || document.formu.usuario.value == '')
{
alert("É necessário entrar com usuário e senha.");
}
else{
endereco = "index.php?senha=" + document.formu.senha.value
endereco2 = "&usuario=" + document.formu.usuario.value
window.location.href = endereco + endereco2;
}
}