var newsItemCount = 7;
var currentNews = 0;
var ticking = true;

function initNews(){

	for (x=0;x<newsItemCount;x++){
		var el = document.getElementById('newsitem_'+x);
		
		if (el != null){
			
		}
		else {
			newsItemCount = x;
			break;
		}

	}
	displayNews(currentNews);
	setTimeout(tickerTimeout, 10000);

}


function setNews(x, click){

	if (click != false){
		ticking = false;
	}

	if (x>0){
	  currentNews++;
	}
	else {
	  currentNews--;
	}
	
	if (currentNews  >= newsItemCount){
		currentNews =0;
	}else if (currentNews <0){
		currentNews =newsItemCount -1 ;
	}
	displayNews(currentNews);
}

function displayNews(item){

	currentNews = item;
	
	for (x=0;x<newsItemCount;x++){
	
		var el = document.getElementById('newsitem_'+x);
		if (x == currentNews){
			el.style.display = 'block';
		}
		else{
			el.style.display = 'none';
		}
		
	}

}


function tickerTimeout(){
	if (ticking){
	setNews(1,false);
	setTimeout(tickerTimeout, 10000);
	}
}