Open the Joomla! Administrator backend section
Click on **Content->Article Manager
**
Create a new Article Type anything in the article and click on apply not **save
**
Highlight a selection of text or images and click on the **link button
**
A dialog box will appear, within the Link URL textfield type in the following
index.php?option=com_content&view=article&id=
Type the article ID at the end of the string that you wish to link to. eg.
index.php?option=com_content&view=article&id=14
The article ID could be obtained by opening the Article Manager and on the left hand side where the articles are listed the article IDs will be listed.