function abas(aba_selecionada)
{
    document.getElementById("mAba1").style.background = "#F0F0F0";
    document.getElementById("mAba2").style.background = "#F0F0F0";
    document.getElementById("mAba3").style.background = "#F0F0F0";
    document.getElementById("mAba1").style.borderBottom = "1px solid #E0E0E0";
    document.getElementById("mAba2").style.borderBottom = "1px solid #E0E0E0";
    document.getElementById("mAba3").style.borderBottom = "1px solid #E0E0E0";
    document.getElementById("mAba1").style.color = "#3666D2";
    document.getElementById("mAba2").style.color = "#3666D2";
    document.getElementById("mAba3").style.color = "#3666D2";

    document.getElementById("mAba" + aba_selecionada).style.background = "#FFFFFF";
    document.getElementById("mAba" + aba_selecionada).style.borderBottom = "1px solid #FFFFFF";
    document.getElementById("mAba" + aba_selecionada).style.color = "#000000";

    document.getElementById("conteudo1").style.display = "none";
    document.getElementById("conteudo2").style.display = "none";
    document.getElementById("conteudo3").style.display = "none";
    document.getElementById("conteudo" + aba_selecionada).style.display = "block";
}