Scroller=function(config,callback){ 
    this.Obj=config.Obj;//滚屏对象 
    this.ul=this.Obj.eq(0).find("ul:first"); 
    this.lineH=this.ul.find("li:first").height(); 
    this.line=config.line?parseInt(config.line,10):parseInt(this.Obj.height()/this.lineH,10);//滚屏行数 
    this.speed=config.speed?parseInt(config.speed,10):500;//滚屏速度，越大越慢 
    this.timer=config.timer?parseInt(config.timer,10):3000;//滚屏间隔时间 
    this.timerID=null; 
    if(this.line==0) this.line=1; 
    this.upHeight=0-this.line*this.lineH; 
    this.scrollUp=function(){ 
        this.ul.animate({ 
                marginTop:this.upHeight 
            },this.speed,function(){ 
                for(var j=1;j<=this.ScrollBox.line;j++){ 
                    $(this).find("li:first").appendTo($(this)); 
                } 
                $(this).css({marginTop:0}); 
        }); 
        var SBox=this; 
        SBox.timerID=setTimeout(function(){ 
            GobalScroll.apply(this,[SBox]); 
        },SBox.timer); 
    } 
    this.ul[0].ScrollBox=this; 
    this.stop=function(){ 
        var ScrollBox=this.ScrollBox; 
        clearTimeout(ScrollBox.timerID); 
    } 
    
    this.scroll=function(){ 
        var ScrollBox=this.ScrollBox; 
        ScrollBox.timerID=setTimeout(function(){ 
            GobalScroll.apply(this,[ScrollBox]); 
        },ScrollBox.timer); 
    } 
    
    this.ul.hover(this.stop,this.scroll); 
    var ScrollBox1=this; 
    ScrollBox1.timerID=setTimeout(function(){ 
        GobalScroll.apply(this,[ScrollBox1]); 
    },ScrollBox1.timer); 
} 

function GobalScroll(obj){ 
    obj.scrollUp(); 
}