float ad浮动广告代码_广告代码

<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <meta name="GENERATOR" content="Microsoft FrontPage 4.0"> <meta name="ProgId" content="FrontPage.Editor.Document"> <title>New Page 1</title> <script language="javascript"> var isRight=true; var isDown=true; function init() { float(); } function float() { var top_u=parseInt(document.body.offsetHeight)-parseInt($("ad").style.height);; var top_l=0; var left_u=parseInt(document.body.offsetWidth)-parseInt($("ad").style.width); var left_l=0; var mx=+parseInt(Math.random()*10); var my=+parseInt(Math.random()*10); if(parseInt($("ad").style.left)<parseInt(document.body.scrollLeft)) { isRight=true; } else if(parseInt($("ad").style.left)>parseInt(document.body.scrollLeft)+left_u) { isRight=false; } if(parseInt($("ad").style.top)<=parseInt(document.body.scrollTop)) { isDown=true; } else if(parseInt($("ad").style.top)>parseInt(document.body.scrollTop)+top_u) { isDown=false; } mx=isRight?mx:0-mx; my=isDown?my:0-my; $("ad").style.left=parseInt($("ad").style.left)+mx; $("ad").style.top=parseInt($("ad").style.top)+my; setTimeout("float()",50) } function $(id) { return document.getElementById(id) } function ind(str,s) { document.body.insertAdjacentHTML("BeforeEnd",str+s); } </script> margin=0> <div id="ad" style="position:absolute;height:0px;width:0px; border:1px solid black; width:100px; height:70px; left:0px;top:0px; height:0px;"></div>