// Example:// writeCookie("myCookie", "my name", 24);// Stores the string "my name" in the cookie "myCookie" which expires after 24 hours.function writeCookie(name, value, hours){ var expire = ""; if(hours != null) { expire = new Date((new Date()).getTime() + hours * 3600000); expire = "; expires=" + expire.toGMTString(); } document.cookie = name + "=" + escape(value) + expire;}// Example:// alert( readCookie("myCookie") );function readCookie(name){ var cookieValue = ""; var search = name + "="; if(document.cookie.length > 0) { offset = document.cookie.indexOf(search); if (offset != -1) { offset += search.length; end = document.cookie.indexOf(";", offset); if (end == -1) end = document.cookie.length; cookieValue = unescape(document.cookie.substring(offset, end)) } } return cookieValue;}dreamweaver 8自带的。
//首先明确:cookie 的格式是 "cookie的名字=cookie的值; expires=cookie的结束时间; path=路径",
function get_cookie(name) {
var cookies = document.cookie.split(';'); //以分号为间隔返回数组
for (var i = 0; i < cookies.length; i++) { //对每个信息操作
var cookie = cookies[i];
var item = cookie.split('='); //以等号分割
if (trim(item[0]) == name) { //如果cookie的名称为参数名称
if (item[1] != null) { //并且cookie的值不为空
return unescape(item[1]); //用unescape方法解码用 escape 方法进行了编码的cookie值
} else {
return "";
}
}
}
return null;
}
</script>
关于js的学习就要多看别人的代码啦,不会就查开发手册---js中文参考手册,DHTML
手册
var cookie_start = document.cookie.indexOf(name);
var cookie_end = document.cookie.indexOf(";", cookie_start);
return cookie_start == -1 ? '' : unescape(document.cookie.substring(cookie_start + name.length + 1, (cookie_end > cookie_start ? cookie_end : document.cookie.length)));
}