$(document).ready(function(){
    var pais = $('#pais');
    var brasil_div = $('.brasil_div');
    var brasil_divAll = $('.brasil_div input, .brasil_div select');
    var other_div = $('.other_div');
    var other_divAll = $('.other_div input, .other_div select');
    var alt_pass = $('#alt_pass');
    var div_alt_pass = $('#div_alt_pass');
    var div_alt_passAll = $('#div_alt_pass input');

    if (alt_pass.attr('checked'))
        show(div_alt_pass, div_alt_passAll);
    else
        hide(div_alt_pass, div_alt_passAll);
    alt_pass.click(function(){
        if (alt_pass.attr('checked'))
            show(div_alt_pass, div_alt_passAll);
        else
            hide(div_alt_pass, div_alt_passAll);
    });
    
    if (pais.val() == 30) {
        show(brasil_div, brasil_divAll);
        hide(other_div, other_divAll);
    } else if (pais.val() == 0) {
        hide(brasil_div, brasil_divAll);
        hide(other_div, other_divAll);
    } else {
        hide(brasil_div, brasil_divAll);
        show(other_div, other_divAll);
    }
    pais.change(function(){
        if (pais.val() == 30) {
            show(brasil_div, brasil_divAll);
            hide(other_div, other_divAll);
        } else if (pais.val() == 0) {
            hide(brasil_div, brasil_divAll);
            hide(other_div, other_divAll);
        } else {
            hide(brasil_div, brasil_divAll);
            show(other_div, other_divAll);
        }
    });    
});