My installation of phpScheduleIt is accessed by our users from a link on a "menu" web page. We have a kiosk computer with a web browser that has all the controls hidden (including the back button) so we needed a way to get the users from phpScheduleIt back into the "menu". So, we made the logo image into a clickable link.
Edit line 107 in Template.class.php (in the lib directory) adding an anchor tag around the div:
? '<a href="../index.html"><div align="left"><img src="' . $conf['ui']['logoImage'] . '" alt="logo" vspace="5" /></div></a>'
Edit line 40 in index.php in the same manner:
? '<a href="../index.html"><div align="left"><img src="' . $conf['ui']['logoImage'] . '" alt="logo" vspace="5"/></div></a>'
My example above sends the user to the page located at ../index.html whenever they click on our custom logo image.