var show_news_for = 7;
var nnst = setTimeout('NewsNext()', show_news_for*1000);
var curNews = 1;

for(c=1;c<=4;c++) {
	$('news_'+c).onclick=NewsPauseOn;
}

function NewsNext(n, ft) {
	if (!n) { nxt = (curNews+1 <= 4) ? (curNews+1):(1); } 
	else { nxt = n; }	
	if (nxt != curNews) {
		$('post_'+curNews).style.zIndex = 2999;
		$('post_'+nxt).style.zIndex = 3000;
		$('post_'+nxt).style.display = 'none';
		$('post_'+nxt).style.left = '0px';
		new Effect.Fade($('post_'+curNews));
		new Effect.Appear($('post_'+nxt));
		$('news_'+curNews).className = '';
		$('news_'+nxt).className = 'selected';
		curNews = nxt;
		clearTimeout(nnst);
		nnst = setTimeout('NewsNext()', ( (!ft)?show_news_for:ft)*1000);
	}
}

function NewsPauseOn() {
	clearTimeout(nnst);
	c = this.id.replace('news_','');
	NewsNext(c, 20);
}