Hi Daniela,
Yes , i used usersID so you can change it to the same ID you are using in your DB.
$w(" #lightBox ").hide(); ==> LightBox ID should match the ID of your light box.
You right, because we only hide the lightbox when its not the first visit for the user, we let the default state ( shown ), Hidden onLoad check box => unchecked .
Just to be sure, if you copied and paste this code, i can see a " : " at the beginning of your user ID, and that could be the reason why that query is not working fine.
.eq(":_id", user.id)// :_id INSTEAD OF _id
Hope this can help you.
Best,
Mustafa