$(document).ready(function(e) {	
	$("#img2").html($("#img1").html());	
	var scrolltime=3000; //滚动时间间隔
	var scollwidth=161; //每次滚动距离
	var leftwidth;
	
	var marginleft=($("#img2").offset().left)-($("#img2").width());//计算外边距
	var scrollvar=setinterval(roll,scrolltime);	
	
	$("#scrollinner").find("img").on({
			"mouseover":function(){
				clearinterval(scrollvar);
			},
			"mouseleave":function() {
				scrollvar = setinterval(roll,scrolltime); 
			}
	});
		
	
	function roll(){ //定时函数
		leftwidth=parseint($("#scrollinner").css("margin-left"));
		$("#scrollinner").animate({marginleft:(leftwidth-scollwidth)+"px"});		
		if($("#img2").offset().left<=marginleft){
			$("#scrollinner").stop(true,true).css("margin-left","0px");
			$("#scrollinner").animate({marginleft:-scollwidth+"px"});
		}		
	}
});