本文实例讲述了JS实现消息来时让网页标题闪动效果的方法。分享给大家供大家参考，具体如下：
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
<script>
var g_blinkid = 0;
var g_blinkswitch = 0;
var g_blinktitle = document.title;
var g_onlineuser = "";
var g_sysmsg_sound = null;
var g_newmsg_sound = null;
var g_app_num = 0;
var g_appnum = 0;
var g_bappmore = false;
var g_inputtime = 0;
function blinkNewMsg()
{
document.title = g_blinkswitch % 2==0 "【 】 - " + g_blinktitle : "【新消息】 - " + g_blinktitle;
g_blinkswitch++;
}
g_blinkid = setInterval(blinkNewMsg, 1000);
function stopBlinkNewMsg()
{
if (g_blinkid)
{
clearInterval(g_blinkid);
g_blinkid = 0;
document.title = g_blinktitle;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="Button1" type="button" value="button" onclick="stopBlinkNewMsg();" />
</div>
</form>
</body>
</html>
参考开心网的head-26.js
var g_blinkid = 0;
var g_blinkswitch = 0;
var g_blinktitle = document.title;
var g_onlineuser = "";
var g_sysmsg_sound = null;
var g_newmsg_sound = null;
var g_app_num = 0;
var g_appnum = 0;
var g_bappmore = false;
var g_inputtime = 0;
function blinkNewMsg()
{
var now = new Date();
var nowtime = now.getTime();
if(nowtime - g_inputtime > 5000)
{
document.title = g_blinkswitch % 2 "【 】 - " + g_blinktitle : "【新消息】 - " + g_blinktitle;
}
g_blinkswitch++;
}
function blinkOnline()
{
document.title = g_blinkswitch % 2 "○" + g_onlineuser + " 上线了 - " + g_blinktitle : "●" + g_onlineuser + " 上线了 - " + g_blinktitle;
g_blinkswitch++;
if (g_blinkswitch > 10)
{
stopBlinkNewMsg();
}
}
function checkNewMsg()
{
var url = "/home/newmsg.php";
var pars = "";
var myAjax = new Ajax.Request(url, {method: "post", parameters: pars, onComplete: function (req) { checkNewMsgShow(req); } });
}
function stopBlinkNewMsg()
{
if (g_blinkid)
{
clearInterval(g_blinkid);
g_blinkid = 0;
$("head_msgdiv").style.display = "none";
document.title = g_blinktitle;
}
}
var g_oldmsg = g_oldsysmsg = g_oldbbs = g_oldbbsreply = g_oldcomment = g_oldreply = 0;
function checkNewMsgShow(req)
{
var r = req.responseText;
stopBlinkNewMsg();
setTimeout(checkNewMsg, 60000);
eval ("r="+r);
var a_msglist = new Array("msg", "sysmsg", "bbs", "bbsreply", "comment", "reply");
if(r.notice == "1")
{
var forbidsound = parseInt(r.forbidsound);
if (!forbidsound)
{
for (i=0; i<a_msglist.length; i++)
{
if ($("body_" + a_msglist[i] + "_num"))
{
var c = parseInt($("body_" + a_msglist[i] + "_num").innerHTML);
eval("g_old" + a_msglist[i] + "=c;");
}
}
var newmsg = parseInt(r.msg) + parseInt(r.bbs) + parseInt(r.bbsreply) + parseInt(r.comment) + parseInt(r.reply);
var sysmsg = parseInt(r.sysmsg);
var newchange = (parseInt(r.msg) - g_oldmsg)
|| (parseInt(r.bbs) - g_oldbbs)
|| (parseInt(r.bbsreply) - g_oldbbsreply)
|| (parseInt(r.comment) - g_oldcomment)
|| (parseInt(r.reply) - g_oldreply);
var syschange = (parseInt(r.sysmsg) - g_oldsysmsg);
for (i=0; i<a_msglist.length; i++)
{
eval("g_old" + a_msglist[i] + "=parseInt(r." + a_msglist[i] + ");");
}
if (newmsg && newchange)
{
if (g_newmsg_sound == null)
{
g_newmsg_sound = new SWFObject("http://img.kaixin001.com.cn/i2/newmsg_sound.1.0.swf", "newmsg_sound_swf", "1", "1", "8", "#ffffff", true);
g_newmsg_sound.addParam("allowscriptaccess", "always");
g_newmsg_sound.addParam("wmode", "opaque");
g_newmsg_sound.addParam("menu", "false");
g_newmsg_sound.addVariable("autoplay","0");
}
g_newmsg_sound.write("head_msgsound_div");
}
else if (sysmsg && syschange)
{
if (g_sysmsg_sound == null)
{
g_sysmsg_sound = new SWFObject("http://img.kaixin001.com.cn/i2/sysmsg_sound.1.0.swf", "sysmsg_sound_swf", "1", "1", "8", "#ffffff", true);
g_sysmsg_sound.addParam("allowscriptaccess", "always");
g_sysmsg_sound.addParam("wmode", "opaque");
g_sysmsg_sound.addParam("menu", "false");
g_sysmsg_sound.addVariable("autoplay","0");
}
g_sysmsg_sound.write("head_msgsound_div");
}
}
$("head_msgdiv").style.display = "block";
g_blinkid = setInterval(blinkNewMsg, 1000);
}
else if (0 && r.online.length)
{
g_blinkswitch = 0;
g_onlineuser = r.online;
g_blinkid = setInterval(blinkOnline, 500);
}
for (i=0; i<a_msglist.length; i++)
{
if (!parseInt(r[a_msglist[i]]))
{
$("head_" + a_msglist[i] + "_num").innerHTML = "";
if ($("body_" + a_msglist[i] + "_num"))
{
$("body_" + a_msglist[i] + "_num").className = "ql2";
$("body_" + a_msglist[i] + "_num").innerHTML = "0条新";
}
}
else
{
$("head_" + a_msglist[i] + "_num").innerHTML = "(" + r[a_msglist[i]] + ")";
if ($("body_" + a_msglist[i] + "_num"))
{
$("body_" + a_msglist[i] + "_num").className = "cr";
$("body_" + a_msglist[i] + "_num").innerHTML = r[a_msglist[i]] + "条新";
}
if (a_msglist[i] == "msg")
{
if ('function' == typeof(msg_view_checkNewMsg))
{
msg_view_checkNewMsg();
};
}
}
}
}
function outputHead()
{
var v_html =
'<div id="head">'
+' <div class="hd">'
+' <div class="h1 wl1" style="margin-top:3px;">'
+' <div style="padding-left:18px;"><a href="/" class="cf" title="开心网"><img src="/UploadFiles/2021-04-02/kaixinlogo.gif">
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