var reg_email = /^[0-9a-zA-Z]([-.\w]*[0-9a-zA-Z_+])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[0-9a-zA-Z]{2,9}$/;

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;
}
/*
 * funcao para validar cpf
 * add by jackson f. de a. mafra
 * convertida para jquery
 */
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;
}