function headlinesTabs(i) {
	document.getElementById("stories").style.display = (i == "on-stories") ? "block" : "none";
	document.getElementById("videos").style.display = (i == "on-videos") ? "block" : "none";
	document.getElementById("calendar").style.display = (i == "on-calendar") ? "block" : "none";
	document.getElementById("headlines").style.display = (i == "on-headlines") ? "block" : "none";
	document.getElementById("blank").style.display = (i == "on-blank") ? "block" : "none";
	
	document.getElementById("headlines-tab").className = i;
}