var newsDelay = 5000;
var lastActiveNews = 1;
var totalNewsItems = 0;

function newsTicker() {

	var counter = 1;
	while(document.getElementById('newsItem'+counter)) {
		var currentNewsItem = document.getElementById('newsItem'+counter);
		currentNewsItem.style.marginBottom = '0px';
		if(counter == 1) {
			currentNewsItem.className += 'active';
		} else {
			currentNewsItem.className += 'inactive';
		}
		counter++;
		totalNewsItems++;
	}
	if(totalNewsItems>0) {
		setInterval('switchNews()', newsDelay);
	}
}


function switchNews() {
	var currentNews = lastActiveNews+1;
	if(currentNews>totalNewsItems) currentNews = 1;
	
	document.getElementById('newsItem'+currentNews).className = 'active';
	document.getElementById('newsItem'+lastActiveNews).className = 'inactive';
	
	lastActiveNews++;
	if(lastActiveNews>totalNewsItems) lastActiveNews = 1;
}