function clearNewsTabs() {
	document.getElementById("nTab1").className="";
	document.getElementById("nTab2").className="";
	document.getElementById("nTab3").className="";
	document.getElementById("nTab4").className="";
	//clear content
	document.getElementById("newsTab1").style.display = "none";
	document.getElementById("newsTab2").style.display = "none";
	document.getElementById("newsTab3").style.display = "none";
	document.getElementById("newsTab4").style.display = "none";
}

function showNewsContent(content,tab) {
	clearNewsTabs();
	if(content.length < 1) { return; }
	document.getElementById(tab).className="current";
	document.getElementById(content).style.display = "block";
}

//showcase 
function clearShowcaseTabs() {
	document.getElementById("scTab1").className="";
	document.getElementById("scTab2").className="";
	document.getElementById("scTab3").className="";
	document.getElementById("scTab4").className="";
	document.getElementById("scTab5").className="";
	//clear content
	document.getElementById("showcaseTab1").style.display = "none";
	document.getElementById("showcaseTab2").style.display = "none";
	document.getElementById("showcaseTab3").style.display = "none";
	document.getElementById("showcaseTab4").style.display = "none";
	document.getElementById("showcaseTab5").style.display = "none";
}

function showShowcaseContent(content,tab) {
	clearShowcaseTabs();
	if(content.length < 1) { return; }
	document.getElementById(tab).className="current";
	document.getElementById(content).style.display = "block";
}