JS对手机号码和验证码、QQ号码进行验证

//调用layer
var layerCommon = function(content) {
    layer.open({
        content: content,
        skin: 'msg',
        time: 1.5
    });
}
//手机号码
var numberTel = function(num) {
    if (num == "") {
        layerCommon("请输入手机号");
        return true;
    } else if (!(/^1[3|4|5|7|8]\d{9}$/.test(num))) {
        layerCommon('手机号不符合规范');
        return true;
    }
}
//数字验证码
var numberCode = function(num) {
    if (num == "") {
        layerCommon("请输入验证码");
               return true;
    } else if (!(/^\d{6}$/.test(num))) {
        layerCommon('验证码不符合规范');
              return true;
    }
}
//qq
 var qq_num = $('#xxx').val();
 if (qq_num != '') {
     if (!/^[1-9][0-9]{4,14}$/.test(qq_num)) {
         layer.open({
             content: '请输入正确的QQ号码',
             skin: 'msg',
             time: 1
         });
     }