css广告弹窗满屏跑

window.onload=function(){
        //广告滚动
        var oneInner = $('#divid')[0];
        //定时器
        var a1a = setInterval(moves,10);
        //函数 
        var x = 1;
        var y = 1;
        function moves(){
            var tops = oneInner.offsetTop
            var lefts = oneInner.offsetLeft
    
            if (lefts>=document.documentElement.clientWidth-oneInner.offsetWidth||lefts<0)
            {
                x = -x;
            }
    
            if (tops>=(document.documentElement.clientHeight+document.documentElement.scrollTop)-oneInner.offsetHeight)
            {
                y = -1;
            }
            if (tops<=document.documentElement.scrollTop){
                y = 1;
            }
    
            tops+=y;
            lefts+=x;
    
            oneInner.style.top=tops+"px"
            oneInner.style.left=lefts+"px"
        }
        //悬停停止
        oneInner.onmouseover=function(){
            clearInterval(a1a);
        }
        //放手继续运动
        oneInner.onmouseout=function(){
            a1a =setInterval(moves,10);
        }
    }