function show(id){
	document.getElementById(id).style.display = 'block';
}
function hide(id){
	document.getElementById(id).style.display = 'none';
}
function news(){
		show('indexnews');
		hide('indexarticles');
		document.getElementById('newsStyle').className = 'articles';
		document.getElementById('articlesStyle').className = 'news';
}
function articles(){
		hide('indexnews');
		show('indexarticles');
		document.getElementById('articlesStyle').className = 'articles';
		document.getElementById('newsStyle').className = 'news';
}