Hide modules from registered users in Joomla 1.5

While Joomla 1.5 allows hiding modules from guests (and just show them to registered users), it lacks the ability to do the opposite, namely hiding modules from registered users. Of course such thing can be very useful when there are modules inviting users to register (how pointless to show them to already registered users!), or modules showing advertisements to guests.

As said, the backend does not allow you to set a module to show to guests only, but this can be very easily done in a couple of minutes and minimal effort with a simple hack to the template code. NO need to install plugins or add-ons! It is a simple yet very useful trick.

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