<HTML>
    <HEAD>
    <META http-equiv='Content-Type' content='text/html;charset=utf-8'>
    <TITLE>标题栏闪烁效果</TITLE>
    </HEAD>
    <BODY >
    
        <script language="JavaScript">
            step=0
            function flash_title()
                {
                  step++
                  if (step==3) {step=1}
                  if (step==1) {document.title='【你有新的消息】'}
                  if (step==2) {document.title='【　　　　　　】'}
                  setTimeout("flash_title()",500);
                }
            flash_title()
            </script>
    
    </BODY></HTML>
    
     

    
  
  <!-- 第二种效果 -->


        <HTML>
        <HEAD>
        <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
        <meta name="author" content="">
        <SCRIPT>
        function blink (elId) {
        var html = '';
        if (document.all)
        html += 'var el = document.all.' + elId + ';';
        else if (document.getElementById)
        html += 'var el = document.getElementById("' + elId + '");';
        html +=
        'el.style.visibility = ' +
        'el.style.visibility == "hidden" ? "visible" : "hidden"';
        if (document.all || document.getElementById)
        setInterval(html, 500)
        }
        function init () {
        blink('aText');
        blink('a2ndText');
        }
        </SCRIPT>
        <title>
        <BLINK>
        闪烁效果！！！
        </BLINK>
        </title>
        </HEAD>
        <BODY ONLOAD="init();">
        <SPAN ID="aText">
        <BLINK>
        这行文字闪烁！！！
        </BLINK>
        </SPAN>
        <BR>
        这行文字闪烁！！！
        <DIV ID="a2ndText">
        这行文字闪烁！！！
        </DIV>
        </BODY>
        </HTML>