​x
 
<html>
<head>
<script type="text/javascript">
function blinking_header()
{
if (!document.getElementById('blink').style.color)
    {
    document.getElementById('blink').style.color="red"
    }
if (document.getElementById('blink').style.color=="red")
    {
    document.getElementById('blink').style.color="black"
    }
else
    {
    document.getElementById('blink').style.color="red"
    }
timer=setTimeout("blinking_header()",100)
}
​
function stoptimer()
{
clearTimeout(timer)
}
</script>
</head>
​
<body onload="blinking_header()" onunload="stoptimer()">
<h1 id="blink">闪动的标题</h1> 
</body>
​
</html>
​