function newsPrev(divCount) {
		for(var i=0;i<divCount;i++) {
			var divId = "news_"+i;
			var div = window.document.getElementById(divId);
			if(div.style.display == "block") {
				div.style.display = "none";
				var nextNo = i + 1;
				var nextId = "news_"+nextNo;
			}
			else {
				div.style.display = "none";
			}
		}
		if(nextNo == divCount) {
			nextNo = 0;
			nextId = "news_"+nextNo;
		}
		window.document.getElementById('new').style.display = "inline-block";
		if(nextNo == divCount - 1) {
			window.document.getElementById('old').style.display = "none";
		} 
		else {			
			window.document.getElementById('old').style.display = "inline-block";
		}
		window.document.getElementById(nextId).style.display = "block";
	}
	function newsNext(divCount) {
		for(var i=0;i<divCount;i++) {
			var divId = "news_"+i;
			var div = window.document.getElementById(divId);
			if(div.style.display == "block") {
				div.style.display = "none";
				var nextNo = i - 1;
				window.document.getElementById('old').style.display = "inline-block";
				if(nextNo == -1) {
					nextNo = divCount-1;
				}
				if(nextNo == 0) {
					window.document.getElementById('new').style.display = "none";
				} 
				else {
					window.document.getElementById('new').style.display = "inline-block";
				}
				var nextId = "news_"+nextNo;
			}
			else {
				div.style.display = "none";
			}
		}
		window.document.getElementById(nextId).style.display = "block";
	}