$(function(){
var speed=2500;
var liwidth=104;
var move=104;
var obj=$("#js_scrollbox ul");
var allli=obj.html();
var lilen=$("#js_scrollbox ul li").length;
var yd=liwidth*lilen;
obj.width(liwidth*lilen*3+"px");
obj.append(allli);
obj.prepend(allli);
obj.css({"margin-left":-yd+"px"});

function onemove(style){
	if(style=="left"){
		var movewidth=move;
		}else{
			var movewidth=-move;
			}
	var leftpos=obj.css("margin-left").replace('px', '');
	leftpos=parseint(leftpos);
	obj.stop(true,false).animate(
	{marginleft:leftpos+movewidth},
	500,
	function(){
		var now=parseint(obj.css("margin-left").replace('px', ''));
		if(now>=0){
		obj.css("marginleft",-yd+"px");
		}
		if(now<=-2*yd){
		obj.css("marginleft",-yd+"px");
		}
}
	)
	
	}
$("#js_nextimg").click(function(){
	if(!obj.is(":animated")){onemove();}
	
	});
$("#js_previmg").click(function(){
	if(!obj.is(":animated")){onemove("left");}
	});


var litimer=setinterval(onemove,speed);
$("#js_allbtm").mouseenter(function(){
	clearinterval(litimer);
	});
$("#js_allbtm").mouseleave(function(){
litimer=setinterval(onemove,speed);
	});
});