function playout(){
	document.getElementById('play').className = "play";
	document.getElementById('up').className = "updatelink";
	document.getElementById('abt').className = "aboutlink";
	document.getElementById('link').className = "linkslink";
}

 

function update(){
	document.getElementById('play').className = "playlink";
	document.getElementById('up').className = "update";
	document.getElementById('abt').className = "aboutlink";
	document.getElementById('link').className = "linkslink";
}


function about(){
	document.getElementById('play').className = "playlink";
	document.getElementById('up').className = "updatelink";
	document.getElementById('abt').className = "about";
	document.getElementById('link').className = "linkslink";
}

function link(){
	document.getElementById('play').className = "playlink";
	document.getElementById('up').className = "updatelink";
	document.getElementById('abt').className = "aboutlink";
	document.getElementById('link').className = "links";
}