Help16:Extensions Module Manager Random Image
From Joomla! Documentation
How to access
To access the Random Image module, go to your site back-end. Using the top menu, go to Extensions -> module manager and select "new". Then, select Random Image.
Description
This Module displays a random image from a directory.
Screenshot
An example is shown below:

Outline
Basic Options
- Image Type. The type of image to display. Options are "jpg", "png", "gif", and so on. The default is "jpg".
- Image Folder. The folder on the server that stores the image files. The path is relative to the site URL (for example, "images/stories").
- Link. Optional web site to link to when image is clicked.
- Width (px). Optional image width, in pixels. If entered, image will be forced to this width.
- Height (px). Optional image height, in pixels. If entered, image will be forced to this height.
Advanced Parameters
- Alternative layout Apply an alternative layout or template override
- Module Class Suffix Apply a CSS suffix to the module
- Caching. Use Global/No Caching. Whether or not to cache the content of this Module. A setting of "Use Global" will use the Cache Settings from the Global Configuration screen.
Quick Tips
No tips have been added for the Wrapper module.