js设置,删除,获取用户cookie信息

js设置,删除,获取用户cookie信息

function getcookie(name) { 取得cookie信息
 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)));
}

function setcookie(cookieName, cookieValue, seconds, path, domain, secure) {//设置cookie信息
 var expires = new Date();
 expires.setTime(expires.getTime() + seconds);
 document.cookie = escape(cookieName) + '=' + escape(cookieValue)
  + (expires ? '; expires=' + expires.toGMTString() : '')
  + (path ? '; path=' + path : '/')
  + (domain ? '; domain=' + domain : '')
  + (secure ? '; secure' : '');
}

可能你会问怎么没有删除 cookie  信息的函数呢?删除 cookie只设置他过期就OK了.