收藏/不再提醒

 <script>
if ($.cookie("NLRAF") == null) {
    if (!$("#afps").length) {
        $("head").append('<style id="afps" type="text/css" media="screen">#afp{background-color:#ffe;border-bottom:1px solid #ddd;}#afp .afpc{960px;margin-left:auto;margin-right:auto;position:relative}#afp p{text-align:center;height:32px;line-height:32px}#afp .afpa{color:#09c;font-family:Arial;}#af{font-weight:bold;}#cafp{position:absolute;right:10px;top:8px;16px;height:16px;overflow:hidden;text-indent:-9999em;background:url(share_close.png) no-repeat 3px 3px}#cafp:hover{background-position:-30px 3px}#nlraf{color:#999;text-decoration:underline}</style>')
    }

    if (!$("#afp").length) {
        $("body").prepend('<div id="afp"><div class="afpc"><p>按 <span class="afpa">Ctrl + D</span> 把百度 <a id="af" class="afpa" href="javascript:void(0)" onclick="addFavorite(true)">加入收藏夹</a>，下次访问更方便！<a id="nlraf" href="javascript:void(0)" onclick="CloseNLRAF(true)">不再提醒</a></p><a id="cafp" href="javascript:void(0)" onclick="CloseNLRAF(false)">&times;</a>    </div></div>')
    }
}

function addFavorite(b) {
    CloseNLRAF(true);
    var a = null;
    if (b == "childreTop") {
        var a = "http://baidu.com"
    } else {
        var a = location.href + (b == true ? "?from=topfavorite": "")
    }
    if ($.browser.msie) {
        window.external.addFavorite(a, "把百度")
    } else {
        if ($.browser.mozilla) {
            window.sidebar.addPanel("把百度", a, "")
        } else {
            alert("请按键盘 CRTL键 + D 收藏把百度")
        }
    }
    return false
}
function CloseNLRAF(a) {
    if (a) {
        $.cookie("NLRAF", "true", {
            path: "/",
            expires: 30,
            domain: _domain
        })
    } else {
        $.cookie("NLRAF", "true", {
            path: "/",
            domain: _domain
        })
    }
    $("#afp").slideUp()
}
</script>