A scripting language that runs inside the client browser, used in many web applications. In Joomla, JavaScript has become an important part to enhance the user interface and provide AJAX functionality.

jdoc statements are included in every Joomla template and indicate where the output from other parts of Joomla or its extensions should be positioned in the overall web page. A typical jdoc statement looks like this:

<jdoc:include type="component" />

See the jdoc statements article for more information.

Lightweight Directory Access Protocol (LDAP) is a protocol designed to access directory systems over TCP/IP. Because of this various databases provide an LDAP interface such as Microsoft's Active Directory, Novell's eDirectory, as well as more dedicated LDAP solutions such as OpenLDAP.

Joomla! has had a native LDAP library (joomla.client.ldap (changed to JClientLDAP in Joomla 3.x)) and a native LDAP authentication plugin. This allows Joomla! to authenticate against LDAP systems out of the box: to configure, go to the Plugin Manager and enable and edit the Authentication - LDAP plugin.

You can also read a tutorial on getting started from scratch with LDAP.

Reference: http://docs.joomla.org/Glossary