// 自动滚动 
function boxmove(d1,d2,d3,e,obj,sp){ 
    var speed=sp;
    var Mo=document.getElementById(d1);  
    var Mo1=document.getElementById(d2);  
    var Mo2=document.getElementById(d3); 
    Mo2.innerHTML=Mo1.innerHTML; 
    function boxTop(){ 
            if(Mo2.offsetTop-Mo.scrollTop<=0){Mo.scrollTop-=Mo1.offsetHeight} 
            else{Mo.scrollTop++} 
        } 
    function boxRight(){ 
            if(Mo.scrollLeft<=0){Mo.scrollLeft+=Mo2.offsetWidth} 
            else{Mo.scrollLeft--} 
        } 
    function boxBottom(){  
            if(Mo1.offsetTop-Mo.scrollTop>=0){Mo.scrollTop+=Mo2.offsetHeight} 
            else{Mo.scrollTop--} 
        } 
    function boxLeft(){ 
            if(Mo2.offsetWidth-Mo.scrollLeft<=0){Mo.scrollLeft-=Mo1.offsetWidth} 
            else{Mo.scrollLeft++} 
        } 
    if(e==1){ 
            var MoveTop=setInterval(boxTop,speed); 
            Mo.onmouseover=function(){clearInterval(MoveTop);} 
            Mo.onmouseout=function(){MoveTop=setInterval(boxTop,speed)} 
        } 
    if(e==2){ 
            var MoveRight=setInterval(boxRight,speed); 
            Mo.onmouseover=function(){clearInterval(MoveRight)} 
            Mo.onmouseout=function(){MoveRight=setInterval(boxRight,speed)} 
        } 
    if(e==3){ 
            var MoveBottom=setInterval(boxBottom,speed); 
            Mo.onmouseover=function(){clearInterval(MoveBottom);} 
            Mo.onmouseout=function(){MoveBottom=setInterval(boxBottom,speed)} 
        } 
    if(e==4){ 
            var MoveLeft=setInterval(boxLeft,speed) 
            Mo.onmouseover=function(){clearInterval(MoveLeft)} 
            Mo.onmouseout=function(){MoveLeft=setInterval(boxLeft,speed)} 
        } 
    if(e=="top"){ 
            MoveTop=setInterval(boxTop,speed) 
            obj.onmouseout=function(){clearInterval(MoveTop);} 
        } 
    if(e=="right"){ 
            MoveRight=setInterval(boxRight,speed) 
            obj.onmouseout=function(){clearInterval(MoveRight);} 
        } 
    if(e=="bottom"){ 
            MoveBottom=setInterval(boxBottom,speed) 
            obj.onmouseout=function(){clearInterval(MoveBottom);} 
        } 
    if(e=="left"){ 
            MoveLeft=setInterval(boxLeft,speed) 
            obj.onmouseout=function(){clearInterval(MoveLeft);} 
        } 
    }