下面js中的图片右上角加个关闭按钮， 关闭功能已实现。

 <script> 
document.getElementById('close').addEventListener('click', function () {
    close();
},true)
function close(){
    Rimifon.close = true;
    ad.remove();
}
var Rimifon = { 
"timer" : null,
"close" : false,
"Ads" : new Object, 
"NewFloatAd" : function(imgUrl, strLink) 
{ 
var ad = document.createElement("div"); 
ad.DirV = true; 
ad.DirH = true; 
ad.AutoMove = true; 
ad.Image = new Image; 
ad.Seed = Math.random(); 
ad.Timer = setInterval("Rimifon.Float(" + ad.Seed + ")", 10); 
this.timer = ad.Timer;
this.Ads[ad.Seed] = ad; 
ad.Image.Parent = ad; 
ad.style.position = "absolute"; 
ad.style.left = 0; 
ad.style.top = 0; 
ad.Image.src = imgUrl; 
ad.Image.onmouseover = function(){this.Parent.AutoMove = false;} 
ad.Image.onmouseout = function(){this.Parent.AutoMove = true;} 
if(strLink) 
{ 
ad.href = strLink; 
ad.Image.border = 0; 
ad.target = "_blank"; 
} 
ad.appendChild(ad.Image); 
document.body.appendChild(ad); 
return ad; 
}, 
"Float" : function(floatId) 
{ 
if(this.close){
    clearInterval(this.timer);
}
var ad = this.Ads[floatId]; 
if(ad.AutoMove) 
{ 
var curLeft = parseInt(ad.style.left); 
var curTop = parseInt(ad.style.top); 
if(ad.offsetWidth + curLeft > document.body.clientWidth + document.body.scrollLeft - 1) 
{ 
curLeft = document.body.scrollLeft + document.body.clientWidth - ad.offsetWidth; 
ad.DirH = false; 
} 
if(ad.offsetHeight + curTop > document.body.clientHeight + document.body.scrollTop - 1) 
{ 
curTop = document.body.scrollTop + document.body.clientHeight - ad.offsetHeight; 
ad.DirV = false; 
} 
if(curLeft < document.body.scrollLeft) 
{ 
curLeft = document.body.scrollLeft; 
ad.DirH = true; 
} 
if(curTop < document.body.scrollTop) 
{ 
curTop = document.body.scrollTop; 
ad.DirV = true; 
} 
ad.style.left = curLeft + (ad.DirH ? 1 : -1) + "px"; 
ad.style.top = curTop + (ad.DirV ? 1 : -1) + "px"; 
} 
} 
} 
</script>
<script> 
var ad = Rimifon.NewFloatAd("http://www.jb51.net/images/logo.gif"); 
ad.style.left = 500; 
ad.style.top = 456; 
ad.Image.width = 200; 
ad.Image.height = 200; 

</script> 

 <script>
    var Rimifon = {
        "Ads": new Object,
        "NewFloatAd": function (imgUrl, strLink,canClose) {
            var ad = document.createElement("a");
            ad.DirV = true;
            ad.DirH = true;
            ad.AutoMove = true;
            ad.Image = new Image;
            ad.Seed = Math.random();
            ad.Timer = setInterval("Rimifon.Float(" + ad.Seed + ")", 50);
            this.Ads[ad.Seed] = ad;
            ad.Image.Parent = ad;
            ad.style.position = "absolute";
            ad.style.left = 0;
            ad.style.top = 0;
            ad.Image.src = imgUrl;
            ad.Image.onmouseover = function () { this.Parent.AutoMove = false; }
            ad.Image.onmouseout = function () { this.Parent.AutoMove = true; }
            if (strLink) {
                ad.href = strLink;
                ad.Image.border = 0;
                ad.target = "_blank";
            }
                        //////////////////////////////////////////
            if (canClose) {
                var closeA = document.createElement('a');
                closeA.style.cssText = 'position:absolute;right:0;top:-20px;line-height:20px;cursor:pointer';
                closeA.innerHTML = '关闭';
                ad.appendChild(closeA);
                ad.onclick = function () { clearInterval(ad.Timer);ad.parentNode.removeChild(ad)}
            }
                        //////////////////////////////////////////
            ad.appendChild(ad.Image);
            document.body.appendChild(ad);
            return ad;
        },
        "Float": function (floatId) {
            var ad = this.Ads[floatId];
            if (ad.AutoMove) {
                var curLeft = parseInt(ad.style.left);
                var curTop = parseInt(ad.style.top);
                if (ad.offsetWidth + curLeft > document.body.clientWidth + document.body.scrollLeft - 1) {
                    curLeft = document.body.scrollLeft + document.body.clientWidth - ad.offsetWidth;
                    ad.DirH = false;
                }
                if (ad.offsetHeight + curTop > document.body.clientHeight + document.body.scrollTop - 1) {
                    curTop = document.body.scrollTop + document.body.clientHeight - ad.offsetHeight;
                    ad.DirV = false;
                }
                if (curLeft < document.body.scrollLeft) {
                    curLeft = document.body.scrollLeft;
                    ad.DirH = true;
                }
                if (curTop < document.body.scrollTop) {
                    curTop = document.body.scrollTop;
                    ad.DirV = true;
                }
                ad.style.left = curLeft + (ad.DirH ? 1 : -1) + "px";
                ad.style.top = curTop + (ad.DirV ? 1 : -1) + "px";
            }
        }
    }
</script><body>
    <div style="width:30cm;height:40cm"></div>
</body>
<script>
    var ad = Rimifon.NewFloatAd("http://www.jb51.net/images/logo.gif",false,true);
    ad.style.left = 500;
    ad.style.top = 456;
    ad.Image.width = 88;
    ad.Image.height = 31;
</script>

你这提问，你想说啥？？ 麻烦你学习一下怎么提问好么。。。。
鬼知道你想干啥。。

把图片放在一个div层里面 实现关闭，或者图片为背景，嵌套一个小关闭按钮，实现关闭功能