Template conditional code.
There two types of Joomla conditions
1. Module count conditions
2. Parameter Conditions
Joomla module count conditions are base on whether a module name position is active.
Modules are tied into the menu system in a few ways but I’m going to mention only the basics
for now. So you can understand how module count conditions work with the menu system.
Modules can be assigned to show and hide based on the location of the user or access level.
To view module assignment control go to the Module Manager administrator.
Click on any module and scroll down to see the Menu Assignment Controls.

The default Joomla data install uses three menus Mainmenu, Keyconcept, ExamplePages.
At this point the Menu Assignment Control module will show on every page on your site.
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