Javascript浮动广告图片代码，已封装！兼容性强！使用简单！

使用方法：

<mce:script type="text/javascript"><!-- FloatAd.newFloatAd("图片路径", "图片链接URL"，"图片开始时Top值", "图片开始时Left值"); // 后两个参数不写为0默认从左上角滑出，可修改这两个参数调整浮动图片出现的位置 // --></mce:script>

完整源码：

/** * AD Float Object * * @desc:Create a float ad with image: ad.jpg * @example:FloatAd.newFloatAd("image_path/ad.jpg"); * @desc:Create a float ad with image and url: ad.jpg * @example:FloatAd.newFloatAd("image_path/ad.jpg", "http://blog.csdn.net/xxd851116/"); * * @author: Xing,XiuDong :Last Editer * @date: 2009-09-17 * @refers: http://www.ahbofcom.gov.cn/js/FloatAd.js */ FloatAd = { "ads" : new Object, /** * @param imgUrl : image path * @param strLink : image link address * @param top : image top at starting.. * @param left : image left at starting.. */ "newFloatAd" : function(imgUrl, strLink, top, left) { 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("FloatAd.float(" + ad.Seed + ")", 20); this.ads[ad.Seed] = ad; ad.Image.Parent = ad; ad.style.position = "absolute"; ad.style.left = left || 0; ad.style.top = 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){ 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.documentElement.clientWidth + document.documentElement.scrollLeft - 1){ curLeft = document.documentElement.scrollLeft + document.documentElement.clientWidth - ad.offsetWidth; ad.DirH = false; } if(ad.offsetHeight + curTop > document.documentElement.clientHeight + document.documentElement.scrollTop - 1){ curTop = document.documentElement.scrollTop + document.documentElement.clientHeight - ad.offsetHeight; ad.DirV = false; } if(curLeft < document.documentElement.scrollLeft) { curLeft = document.documentElement.scrollLeft; ad.DirH = true; } if(curTop < document.documentElement.scrollTop) { curTop = document.documentElement.scrollTop; ad.DirV = true; } ad.style.left = curLeft + (ad.DirH ? 1 : -1) + "px"; ad.style.top = curTop + (ad.DirV ? 1 : -1) + "px"; } } };