TOPIC:

Check www.fotogamma.be/activiteitenkalender
Joomla 2.5.28
PHP 5.4

also on johan.brusche.be/activiteitenkalender and see the problem I have with mouseover
Joomla 3.4.3
PHP5.4 and PHP5.5

jobrusche wrote: and see the problem I have with mouseover

It looks like the tooltip classes are missing from your site template css.
some info: www.joomla-css.nl/en/styling-joomla-3-co...t-components/tooltip

Just finished: www.tantramassage-lernen.de

I added some hacks and used rereplacer by Peter van Westen ( nonumber.nl ) to get what I wanted.

Fairs calendar in spain
www.feriascomerciales.es

JEM 2.1.5
Joomla 3.4.7
PHP 5.6.14
Free template: Pri Simple (www.devpri.com/joomla/templates/pri-simple)

I'm using JEM as Event Calendar in all my sites. Each Site is based on the Base Template from www.joomla-css.nl/en with own enhancements and styles.

Youth Band:
www.jumba.ch/index.php/termine
'Next Events'-Module on the main page
(JEM 2.1.5 / PHP 7 / Joomla 3.5.1)
Categories are used to distinguish the different groups.

Local Village Wind Band:
www.mv-bonstetten.ch/index.php/termine
'Next Events'-Module on the main page
(JEM 3.0.7 / PHP 7 / Joomla 3.5.1)
JEM 3.0.7 has been used, as JEM 2.x was not ready for Joomla 3

Chess-Club:
www.bluechess.ch/index.php/agenda
'Next Events'-Module on the main page
(JEM 2.1.5 / PHP 7 / Joomla 3.5.1)
Categories are used to distinguish the different groups.

I'm using JEM for our motorcycle tourclub : www.mtc-tet.nl/index.php/agenda

Using JEM 2.1.5 , Joomla 3.5.1 and have interaction with Community Builder and Jcomments.