本文实例讲述了JS右下角广告窗口代码。分享给大家供大家参考。具体如下：
这是一款右下角窗口JS代码，完美的右下角，仿新浪博客的右个角弹出窗口，这款Javascript代码在兼容性和操作舒适度方面做的相当不错。调用了几张外部的图片，使用时自行下载吧。
运行效果截图如下：
在线演示地址如下：
http://demo.jb51.net/js/2015/js-right-buttom-show-close-able-adv-codes/
具体代码如下：
<!DOCTYPE html PUBLIC "-//W3C//h2D XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/h2D/xhtml1-transitional.h2d"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <style> * { padding: 0; margin: 0; } li { list-style: none; } body { background: #eee; } .float_layer { width: 300px; border: 1px solid #aaaaaa; display:none; background: #fff; } .float_layer h2 { height: 25px; line-height: 25px; padding-left: 10px; font-size: 14px; color: #333; background: url(images/title_bg.gif) repeat-x; border-bottom: 1px solid #aaaaaa; position: relative; } .float_layer .min { width: 21px; height: 20px; background: url(images/min.gif) no-repeat 0 bottom; position: absolute; top: 2px; right: 25px; } .float_layer .min:hover { background: url(images/min.gif) no-repeat 0 0; } .float_layer .max { width: 21px; height: 20px; background: url(images/max.gif) no-repeat 0 bottom; position: absolute; top: 2px; right: 25px; } .float_layer .max:hover { background: url(images/max.gif) no-repeat 0 0; } .float_layer .close { width: 21px; height: 20px; background: url(images/close.gif) no-repeat 0 bottom; position: absolute; top: 2px; right: 3px; } .float_layer .close:hover { background: url(images/close.gif) no-repeat 0 0; } .float_layer .content { height: 160px; overflow: hidden; font-size: 14px; line-height: 18px; color: #666; text-indent: 28px; } .float_layer .wrap { padding: 10px; } </style> <script type="text/javascript"> function miaovAddEvent(oEle, sEventName, fnHandler) { if(oEle.attachEvent) { oEle.attachEvent('on'+sEventName, fnHandler); } else { oEle.addEventListener(sEventName, fnHandler, false); } } window.onload = function() { var oDiv=document.getElementById('miaov_float_layer'); var oBtnMin=document.getElementById('btn_min'); var oBtnClose=document.getElementById('btn_close'); var oDivContent=oDiv.getElementsByTagName('div')[0]; var iMaxHeight=0; var isIE6=window.navigator.userAgent.match(/MSIE 6/ig) && !window.navigator.userAgent.match(/MSIE 7|8/ig); oDiv.style.display='block'; iMaxHeight=oDivContent.offsetHeight; if(isIE6) { oDiv.style.position='absolute'; repositionAbsolute(); miaovAddEvent(window, 'scroll', repositionAbsolute); miaovAddEvent(window, 'resize', repositionAbsolute); } else { oDiv.style.position='fixed'; repositionFixed(); miaovAddEvent(window, 'resize', repositionFixed); } oBtnMin.timer=null; oBtnMin.isMax=true; oBtnMin.onclick=function () { startMove ( oDivContent, (this.isMax=!this.isMax)?iMaxHeight:0, function () { oBtnMin.className=oBtnMin.className=='min'?'max':'min'; } ); }; oBtnClose.onclick=function () { oDiv.style.display='none'; }; }; function startMove(obj, iTarget, fnCallBackEnd) { if(obj.timer) { clearInterval(obj.timer); } obj.timer=setInterval ( function () { doMove(obj, iTarget, fnCallBackEnd); },30 ); } function doMove(obj, iTarget, fnCallBackEnd) { var iSpeed=(iTarget-obj.offsetHeight)/8; if(obj.offsetHeight==iTarget) { clearInterval(obj.timer); obj.timer=null; if(fnCallBackEnd) { fnCallBackEnd(); } } else { iSpeed=iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed); obj.style.height=obj.offsetHeight+iSpeed+'px'; ((window.navigator.userAgent.match(/MSIE 6/ig) && window.navigator.userAgent.match(/MSIE 6/ig).length==2)?repositionAbsolute:repositionFixed)() } } function repositionAbsolute() { var oDiv=document.getElementById('miaov_float_layer'); var left=document.body.scrollLeft||document.documentElement.scrollLeft; var top=document.body.scrollTop||document.documentElement.scrollTop; var width=document.documentElement.clientWidth; var height=document.documentElement.clientHeight; oDiv.style.left=left+width-oDiv.offsetWidth+'px'; oDiv.style.top=top+height-oDiv.offsetHeight+'px'; } function repositionFixed() { var oDiv=document.getElementById('miaov_float_layer'); var width=document.documentElement.clientWidth; var height=document.documentElement.clientHeight; oDiv.style.left=width-oDiv.offsetWidth+'px'; oDiv.style.top=height-oDiv.offsetHeight+'px'; } </script> </head> <body> <div id="miaov_float_layer"> <h2> <strong>这是标题</strong> <a id="btn_min" href="javascript:;"></a> <a id="btn_close" href="javascript:;"></a> </h2> <div> <div> 这里放置的是广告信息，你可以填入任何的广告内容，比如像这样：<strong>查字典教程网是国内专业的网站建设资源、脚本编程学习类网站，提供asp、php、asp.net、javascript、jquery、vbscript、dos批处理、网页制作、网络编程、网站建设等编程资料</strong>脚本特效下载地址：<address>http://www.jb51.net/jiaoben/</address> </div> </div> </div> </body> </html>
希望本文所述对大家的javascript程序设计有所帮助。
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