function ernaehrungstipp() {
    Event.observe('ernaehrungstipp_teaser', 'mouseover', function() {
        open_ernaehrungstipp();
    });
    Event.observe('ernaehrungstipp_popup', 'mouseout', function(e) {
        if ( $(e.relatedTarget || event.toElement).descendantOf('ernaehrungstipp_popup')) {
            return;
        }
        close_ernaehrungstipp();
    });
}
// open Filter Pop-Up
function open_ernaehrungstipp() {
    var popup = $('ernaehrungstipp_popup');
    
    Effect.Appear( popup, { duration: 0.2 } );
}
// close Filter Pop-Up
function close_ernaehrungstipp() {
    var popup = $('ernaehrungstipp_popup');
    
    Effect.Fade( popup, { duration: 0.2 } );
}