[Plugin: Events Manager] Display Event php code

Hi everybody,

I’m developping a wordpress theme, and I would like to display some events in a specific page.
I would like to know how to display an event in php code ?
After creating some dummy events, I tried to display them using this code:

if (class_exists('EM_Events')) {
                        echo EM_Events::output( array('limit'=>2,'orderby'=>'name'));
                    }

But nothing appears, and when I use “echo ‘aaaa'” in an else condition, it always enter in that block.

Anybody has an idea ?

Thanks

http://wordpress.org/extend/plugins/events-manager/