function featuresTabs(i) {
	document.getElementById("features").style.display = (i == "on-features") ? "block" : "none";
	document.getElementById("calendar").style.display = (i == "on-calendar") ? "block" : "none";
	document.getElementById("recentvid").style.display = (i == "on-recentvid") ? "block" : "none";
	document.getElementById("results").style.display = (i == "on-results") ? "block" : "none";
	
	document.getElementById("features-tab").className = i;
}