JS使用cookie实现DIV提示框只显示一次的方法
本文实例讲述了JS使用cookie实现DIV提示框只显示一次的方法。分享给大家供大家参考,具体如下:
这里运用JavaScript的cookie技术,控制网页上的提示DIV只显示一次,也就是当用户是第一次打开网页的时候才显示,第二次自动隐藏起来,很好的提升了用户体验,不会使用户烦感;利用Cookies,我们还可做超多的事情,慢慢体会吧。
运行效果截图如下:
在线演示地址如下:
http://demo.jb51.net/js/2015/js-cookie-div-dlg-show-once-codes/
具体代码如下:
<!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>cookie,只显示一次的DIV提示框</title> <style> .note { height: 100px; width: 600px; background: url(images/tishi.jpg) #FEFFCF 40px 0px no-repeat; border: #EDCE7B 1px solid; } .guanbi { float: right; font-size: 12px; padding: 6px; } </style> <script> function cookiesave(n, v, mins, dn, path) { if (n) { if (!mins) mins = 365 * 24 * 60; if (!path) path = "/"; var date = new Date(); date.setTime(date.getTime() + (mins * 60 * 1000)); var expires = "; expires=" + date.toGMTString(); if (dn) dn = "domain=" + dn + "; "; document.cookie = n + "=" + v + expires + "; " + dn + "path=" + path; } } function cookieget(n) { var name = n + "="; var ca = document.cookie.split(';'); for (var i = 0; i < ca.length; i++) { var c = ca[i]; while (c.charAt(0) == ' ') c = c.substring(1, c.length); if (c.indexOf(name) == 0) return c.substring(name.length, c.length); } return ""; } function closeclick() { document.getElementById('note').style.display = 'none'; cookiesave('closeclick', 'closeclick', '', '', ''); } function clickclose() { if (cookieget('closeclick') == 'closeclick') { document.getElementById('note').style.display = 'none'; } else { document.getElementById('note').style.display = 'block'; } } window.onload = clickclose; </script> </head> <body> <div id="note" class="note" style="display: none;"> <div> <a href="#" onclick="closeclick()" class="guanbi"><img src="images/close-note.gif" border="0" /></a> </div> </div> </body> </html>