function timer() {		
	setTimeout("change_news()", 5000);
}

function change_news() {
	if (document.getElementById('news_1').style.display == 'block') {
		document.getElementById('news_2').style.display = 'block';	
		document.getElementById('news_1').style.display = 'none';
		document.getElementById('news_3').style.display = 'none';
	} else if (document.getElementById('news_2').style.display == 'block') {
		document.getElementById('news_3').style.display = 'block';	
		document.getElementById('news_1').style.display = 'none';
		document.getElementById('news_2').style.display = 'none';
	}	else if (document.getElementById('news_3').style.display == 'block') {
		document.getElementById('news_1').style.display = 'block';	
		document.getElementById('news_2').style.display = 'none';
		document.getElementById('news_3').style.display = 'none';
	}	
	timer();	
}