| Event Name | Where does it trigger | Explanation | Mambo | Joomla 1.0.x | Joomla 1.5.x |
| onStart | Index.php | Triggers before any component , before SEF, but after loading of configuration and database and mainframe initialization. $mainframe is NOT initialized.$Itemid, $option and $task are not initialized. No language file is loaded. $my is not loaded. | No | Yes | No |
| onAfterInitialise | Index.php | Triggers before any component , before SEF, but after loading of configuration and database and mainframe initialization. $mainframe is NOT initialized.$Itemid, $option and $task are not initialized. No language file is loaded. $my is not loaded. | No | No | Yes |
| onAfterStart | Index.php | Triggers after frontend, sef and mainframe initialization. No language file is loaded. $my is not loaded. | No | Yes | No |
| onAfterRoute | Index.php | Triggers afer sef kicks in | No | No | Yes |
| onAfterDispatch | Index.php | Triggers after the mainframe dispatches | No | No | Yes |
| onAfterRender | Index.php | Triggers after the mainframe renders the application | No | No | Yes |
| requiredLogin | includes\authenticator.php | Triggers on login request | Yes | No | No |
| goodLogin | includes\authenticator.php | Triggers on successful login | Yes | No | No |
| badLogin | includes\authenticator.php | Triggers on failed Login attempt | Yes | No | No |
| beforeLogout | includes\authenticator.php | Triggers on logout request | Yes | No | No |
| onHeaders | includes\core.classes.php | Triggers before headers are sent | Yes | No | No |
| afterTemplate | index.php | Triggers after the template is loaded | Yes | No | No |
| preDelete | com_containers\admin.containers.php | Triggers before deleting containers | Yes | No | No |
| onLoginUser | Application.php | Triggers on a login attempt | No | No | Yes |
| onLoginFailure | Application.php | Triggers after a failed login attempt | No | No | Yes |
| onLogoutUser | Application.php | Triggers on a logout request | No | No | Yes |
| onLogoutFailure | Application.php | Triggers on a logout failture | No | No | Yes |
| onBeforeStoreUser | com_user\models\reset.php | Triggers before userdetails are stored | No | No | Yes |
| onAfterStoreUser | com_user\models\reset.php | Triggers after userdetails are stored | No | No | Yes |
| onBeforeDeleteUser | libraries\joomla\user\user.php | Triggers before a user is deleted | No | No | Yes |
| onAfterDeleteUser | libraries\joomla\user\user.php | Triggers before a user is deleted | No | No | Yes |
| userChange | com_users\admin.users.php com_registration\registration.php | Triggers on changing user details | Yes | No | No |
| userBlock | com_users\admin.users.php | Triggers on Blocking an user | Yes | No | No |
| userUnblock | com_users\admin.users.php | Triggers on unblocking an user | Yes | No | No |
| userRegister | com_users\admin.users.php com_registration\registration.php | Triggers on user registration | Yes | No | No |
| userActivate | com_users\admin.users.php com_registration\registration.php | Triggers on user Activation | Yes | No | No |
| userDelete | com_users\admin.users.php | Triggers on user Deletion | Yes | No | No |
| onPrepareContent | content.html.php frontend.html.php | Triggers before the content is shown. Triggers in modules too | Yes | Yes | Yes |
| onAfterDisplayTitle | content.html.php | Triggers after the content title is displayed and only if the content is NOT intro only. It displays wht the function returns | Yes | Yes | Yes |
| onBeforeDisplayContent | content.html.php frontend.html.php | Triggers after the content title is displayed. It displays wht the function returns | Yes | Yes | Yes |
| onAfterDisplayContent | content.html.php frontend.html.php | Triggers after the content is displayed. It displays wht the function returns | Yes | Yes | Yes |
| onValidateContact | com_contact\controller.php | Triggers on contact submission, result should contain the validation errors | No | No | Yes |
| onSubmitContact | com_contact\controller.php | Triggers on contact submission | No | No | Yes |
| onSearch | search.php | Triggers before the search is performed | Yes | Yes | Yes |
| onSearchAreas | com_search\models\search.php | Triggers to get the Search areas | No | No | Yes |
| onGetWebServices | xmlrpc\index.php | Triggers on a RPC call | No | No | Yes |
| onCustomEditorButton | tinymce_exp.php tinymce.php | Triggers in Tinymce on display of the toolbar. The expected result is array(‘button_image.jpg’,’htmlcode’) | Yes | Yes | No |
| onInitEditor | editor.php | Triggers in order to initialize WYSIWYG editors | Yes | Yes | No |
| onGetEditorContents | editor.php | Triggers in order to get the JS needed to submit the content | Yes | Yes | No |
| onEditorArea | editor.php | Triggers to display the Editor Area | Yes | Yes | No |
| onSefStart | joomsef.php | Triggers before a sefRelToAbs is performed | | Artio | |
| onSefEnd | joomsef.php | Triggers after a sefRelToAbs is performed | | Artio | |
| onSefLoad | sef.php | Triggers on start of the sef component | | Artio | |
| onSefUnload | sef.php | Triggers on end of the sef component | | Artio | |
| beforeHead | joomsef_metabot.php | Triggers before HTML header is build | | Artio | |
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