function showWorkshopParticipants(shop) {
	list = document.getElementsByName(shop)
	for (index=0; index < list.length; index++) {
		list.item(index).className='workshop_haze workshop_selected';
	}
}

function hideWorkshopParticipants(shop) {
	list = document.getElementsByName(shop)
	for (index=0; index < list.length; index++) {
		list.item(index).className='workshop_haze';
	}
}