<script language="JavaScript">
var urodz= new Date("8/8/2008");//这里设置你要倒计到哪一天!
var s="今天离<font color=red>北京奥运会开幕</font>";
var now = new Date();
var ile = urodz.getTime() - now.getTime();
var dni = Math.floor(ile / (1000 * 60 * 60 * 24));
if (dni >0)
document.write(""+s+"还有<font color=red>"+dni +"</font>天")
else
document.write("好象已经过了吧!");
</script>