function validarCPF(cpf){
    var filtro = /^\d{3}.\d{3}.\d{3}-\d{2}$/i;
    if(!filtro.test(cpf)){
        return false;
    }
   
    cpf = remove(cpf, ".");
    cpf = remove(cpf, "-");
    
    if(cpf.length != 11 || cpf == "00000000000" || cpf == "11111111111" ||
        cpf == "22222222222" || cpf == "33333333333" || cpf == "44444444444" ||
        cpf == "55555555555" || cpf == "66666666666" || cpf == "77777777777" ||
        cpf == "88888888888" || cpf == "99999999999"){
        return false;
    }

    soma = 0;
    for(i = 0; i < 9; i++)
        soma += parseInt(cpf.charAt(i)) * (10 - i);
    resto = 11 - (soma % 11);
    if(resto == 10 || resto == 11)
        resto = 0;
    if(resto != parseInt(cpf.charAt(9))){
        return false;
    }
    soma = 0;
    for(i = 0; i < 10; i ++)
        soma += parseInt(cpf.charAt(i)) * (11 - i);
    resto = 11 - (soma % 11);
    if(resto == 10 || resto == 11)
        resto = 0;
    if(resto != parseInt(cpf.charAt(10))){
        return false;
    }
    return true;
}
 
function remove(str, sub) {
    i = str.indexOf(sub);
    r = "";
    if (i == -1) return str;
    r += str.substring(0,i) + remove(str.substring(i + sub.length), sub);
    return r;
}
 
function validarEmail(mail){
    var er = new RegExp(/^[A-Za-z0-9_\-\.]+@[A-Za-z0-9_\-\.]{2,}\.[A-Za-z0-9]{2,}(\.[A-Za-z0-9])?/);
    if(typeof(mail) == "string"){
        if(er.test(mail)){
            return true;
        }
    }else if(typeof(mail) == "object"){
        if(er.test(mail.value)){ 
            return true; 
        }
    }
    return false;
}