Javascript:新消息闪烁标题提示代码分享 (转)

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="a01.aspx.cs" Inherits="a01" %>

<!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 runat="server">
    <title>yyyyyy</title>
    <script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>
    <script type="text/javascript">
        var timerArr;
    
        ; (function ($) {

            $.extend({
                /**
                * 调用方法: var timerArr = $.blinkTitle.show();
                *   $.blinkTitle.clear(timerArr);
                */
                blinkTitle: {
                    show: function () { //有新消息时在title处闪烁提示
                        var step = 0, _title = document.title;
                      
                        var timer = setInterval(function () {
                      
                            step++;
                            if (step == 3) { step = 1 };
                            if (step == 1) { document.title = '【   】' + _title };
                            if (step == 2) { document.title = '【新消息】' + _title };
                        }, 500);

                        return [timer, _title];
                    },

                    /**
                    * @param timerArr[0], timer标记
                    * @param timerArr[1], 初始的title文本内容
                    */
                    clear: function (timerArr) { //去除闪烁提示,恢复初始title文本
                        if (timerArr) {
                            clearInterval(timerArr[0]);
                            document.title = timerArr[1];
                        };
                    }
                }
            });
        })(jQuery);

//        jQuery(function ($) {
//            timerArr = $.blinkTitle.show();

//            setTimeout(function () {  //此处是过一定时间后自动消失
//                $.blinkTitle.clear(timerArr);
//            }, 10000);

//            //若人为操作应该消失,只需如此调用: $.blinkTitle.clear(timerArr);
//        });
       
    </script>
    <script type="text/javascript" >
        function Start() {


            //
        
            timerArr = $.blinkTitle.show();
            //
        }
        function End() {


            //
         
            $.blinkTitle.clear(timerArr);
            //
        }

    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    </div>
    </form>
    <p>
        <input id="Button1" type="button" value="开始提示" onclick="Start();" />
        <input id="Button2" type="button" value="关闭提示" onclick="End();" />
    </p>
</body>
</html>

download    demo

posted @ 2011-10-05 11:25  郑文亮  阅读(590)  评论(0编辑  收藏  举报