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javascript实现网站顶部出现几秒后图片缓慢消失的效果_图象特效
<!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=gb2312" /> <title>脚本之家 www.gxlcms.com</title> <script language="javascript" type="text/javascript"> window.onload = function(){ var fudongAD = document.getElementById("headads"); setTimeout("noneheadads()", 3000); //停留时间自己适当调整 } var height2 = 339; //高度 function noneheadads() { height2 = height2 - 10; if (height2 <= 0) { document.getElementById("headads").style.display = "none"; return; } document.getElementById("headads").style.height = height2 + "px"; setTimeout("noneheadads()", 40); } </ script> </head> <body> <div id="headads" style="margin: 0 auto; overflow:hidden;"><img src="http://files.jb51.net/file_images/photoshop/201101/2011012812333783.jpg" /></div> </body> </html>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]
