Posted in Javascript onDecember 30, 2012
如果有一定的JavaScript基础,制作浮动广告还是比较容易的。直接上代码了:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <style type="text/css"> *{ margin:0; padding:0; } #csdn { width:800px; margin:0 auto; } #ad { position:absolute; right:0px; top:30px; z-index:1; } #cl { position:absolute; right:0px; top:30px; z-index:2; } </style> <script type="text/javascript"> var advInitTop=30; var closeInitTop=30; function inix() { advInitTop=document.getElementById("ad").style.pixelTop; closeInitTop=document.getElementById("cl").style.pixelTop; } function closeAd() { document.getElementById("ad").style.display="none"; document.getElementById("cl").style.display="none"; } function move() { //document.getElementById("ad").style.pixelTop=document.body.scrollTop+advInitTop; //document.getElementById("cl").style.pixelTop=document.body.scrollTop+closeInitTop; document.getElementById("ad").style.pixelTop=document.documentElement.scrollTop+advInitTop; document.getElementById("cl").style.pixelTop=document.documentElement.scrollTop+closeInitTop; //alert(document.getElementById("ad").style.pixelTop); window.status=document.documentElement.scrollTop+"/"+document.getElementById("ad").style.pixelTop; } window.onscroll=move; </script> </head> <body> <div id="cl" onclick="closeAd()"> <img src="images/close.jpg" /> </div> <div id="csdn"> <a href="http://www.csdn.net"><img src="images/xiaojie1.jpg" border="0" /></a> </div> <div id="ad"> <a href="http://www.taobao.com"><img src="images/advpic.gif" /></a> </div> </body> </html>
要点:
上述代码中要用document.documentElement ,不要用老的document.body,否则,不符合w3c标准,看不到浮动效果!
如何制作浮动广告 JavaScript制作浮动广告代码
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