var mis = 4000;
var sid = setInterval ( "doSomething()", mis );
var idx = 0;
function doSomething ()
{
	var d=113;
	var arrowY=43+idx*d;
	var picY=-idx*d*3;

	$("#newsArrow").stop();
	$("#newsShow").stop();
	//$("#newsArrow").css("top",arrowY+'px');
	$("#newsArrow").animate({top: arrowY+'px'}, 500,'swing');
	$("#newsShow").animate({top: picY+'px'}, 500,'swing'); 
	idx++;
	idx = (idx >=3)?0:idx;
}

$(function() {

	var newsOver=$("#indexNews>ul>li");

	newsOver.hover(
		function () {
			clearInterval(sid);
			idx=newsOver.index(this);
			doSomething();			
		}, 
		function () {
			sid = setInterval ( "doSomething()", mis );
		}
	);

	
});