I have created a plugin (see attached) for the SRPCalendar (similar to the one for the SRP dashboard) showing same-day arival & depart days as split half-day images showing the morning (for departure) as a different colour to the afternoon (for new arival) according to the booking state.
The SRPCalendar displays the calendar for ordinary client users. The only real difference is that for the client user (this plugin) intermediate changeover days within a block of booking are not indicated with the "/" as they are for the dasboard.

The thread which charts the development of the original plugin is in
http://forum.jomres.net/index.php?topic=2293.30. The plugin is attached to one Vince's post there and can be downloaded from there.
This new plugin basicaly works but it still suffers from differences in the way that the various browsers display images in different ways and under different templates. So it may be necessary for you to edit the size of the images as best works for your template.
I plan to have a further look at trying to reduce the image display differences but from googling there does seem to be genuine differences between how the various browsers treat background images in cells and there does not seem to be a way of auto-scaling a background image within the cell. If someone knows a browser independent way of doing this then please let me know.
Let me know of problems.
Vince, Piranha,
Let me know if you think there is anything basically wrong in the way I have implemented the plugin or suggest improvements.
Also,
1. From googling about the image display variances between different browsers it seems that the "DOCTYPE" declaration is critical to browser behaviour but I couldn't see which jomres file generates it, any pointers welcome, also whether you think touching this will likely mess everything else up!
2. Is there a way within the code to detect which type of browser is being used (if XXXXX.....). As some of the different behaviors are predictable.
All the best to you all and jomres for the New Year.
Paul.
[** POST NOTE: DOWNLOAD LATER VERSION ATTACHED TO LATER POST (dated 16/01/10) IN THIS THREAD **
** THE VERSION ATTACHED TO THIS EARLIER POST INCLUDES LOTS OF DEBUG TEST OUTPUT SO HAVE NOW DELETED/DETACHED FROM THIS POST**]