var c=0;
var t;
var timer_is_on=0;

function timedCount(){
	if (document.getElementById('timer')) document.getElementById('timer').innerHTML=c;
	c=c+1;
	if(c>=2&&c<=count+1) {
		prev=c-1;
		if(count+1==c) c=1;
		if (document.getElementById("news_"+prev)) document.getElementById("news_"+prev).style.display="none";
		if (document.getElementById("news_"+c)) document.getElementById("news_"+c).style.display="";
	}
	t=setTimeout("timedCount()",5000);
}

function doTimer(){
	if (!timer_is_on){
		  timer_is_on=1;
		  timedCount();
	  }
}