function selectTab(tab) {
	switch (tab) {
	case "rankin_live":
		document.getElementById("retrospective_1").style.display = "none";
		document.getElementById("retrospective_2").style.display = "block";
		document.getElementById("slide_1").style.display = "block";
		document.getElementById("slide_2").style.display = "none";
		document.getElementById("rankin_live_h3").style.display = "inline";
		document.getElementById("rankin_live_a").style.display = "none";
		document.getElementById("retrospective_a").style.display = "inline";
		document.getElementById("retrospective_h3").style.display = "none";
		break;
	case "retrospective":
		document.getElementById("retrospective_1").style.display = "block";
		document.getElementById("retrospective_2").style.display = "none";
		document.getElementById("slide_2").style.display = "block";
		document.getElementById("slide_1").style.display = "none";
		document.getElementById("rankin_live_a").style.display = "inline";
		document.getElementById("rankin_live_h3").style.display = "none";
		document.getElementById("retrospective_h3").style.display = "inline";
		document.getElementById("retrospective_a").style.display = "none";
		break;
	}
}