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网页标题title的闪动提示
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title>Instagram</title>
</head>
<body>
</body>
<script type="text/javascript" language="javascript">
var flashTitlePlayer = {
start: function (msg) {
this.title = document.title;
if (!this.action) {
try {
this.element = document.getElementsByTagName(‘title‘)[0];
this.element.innerHTML = this.title;
this.action = function (ttl) {
this.element.innerHTML = ttl;
};
} catch (e) {
this.action = function (ttl) {
document.title = ttl;
}
delete this.element;
}
this.toggleTitle = function () {
this.action(‘【‘ + this.messages[this.index = this.index == 0 ? 1 : 0] + ‘】Instagram‘);
};
}
this.messages = [msg];
var n = msg.length;
var s = ‘‘;
if (this.element) {
var num = msg.match(/\w/g);
if (num != null) {
var n2 = num.length;
n -= n2;
while (n2 > 0) {
s += " ";
n2--;
}
}
}
while (n > 0) {
s += ‘ ‘;
n--;
};
this.messages.push(s);
this.index = 0;
this.timer = setInterval(function () {
flashTitlePlayer.toggleTitle();
}, 1000);
},
stop: function () {
if (this.timer) {
clearInterval(this.timer);
this.action(this.title);
delete this.timer;
delete this.messages;
}
}
};
function flashTitle(msg) {
flashTitlePlayer.start(msg);
}
function stopFlash() {
flashTitlePlayer.stop();
}
flashTitle(‘You have a new message‘);
</script>
</html>
网页标题title的闪动提示
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