var DCSectionsTransitionTime = DCGlobalTransitionTime;
var DCFilledSections = [];

function DCSetExhibitionSections() {
	$$(".DC-submenu").each(function(el){ 
		if (!el.empty()) {
			$('DCExhibitionSectionNav').insert('<li><a href="#" id="button_' + el.id + '" onclick="DCToggleExhibitionSection(\'' + el.id + '\');">' + el.id + '&nbsp;&raquo;</a></li>');
		} 
	});
}

function DCToggleExhibitionSection(id) {
	$$(".DC-submenu").each(function(el){ el.hide(); });
	$(id).appear({ duration: DCSectionsTransitionTime });
}

Event.observe(window, "load", function() {
	$$(".DC-submenu").each(function(el, i){ if (!el.empty()) DCFilledSections.push(el.id); });
	DCSetExhibitionSections();
	DCToggleExhibitionSection(DCFilledSections[0]);
});