if (getCookie("guidance") == null) { document.cookie = "guidance=true"; window.location.href = "/default.html"; } function getCookie(name) { var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)"); if (arr = document.cookie.match(reg)) return unescape(arr[2]); else return null; }
以上js代码实现的是通过cookie记录是否第一次访问首页来决定是否跳转到引导页面.
以下代码实现的是引导页自动跳转回首页:
<meta http-equiv="Refresh" content="40; url=/" />
var t = 40; function fun() { t--; if (t <= 0) { location.href = "/"; clearInterval(inter); } } var inter = setInterval("fun()", 1000);