// JavaScript Document

var xday = new Date("Thu Sep 16 2010 18:00:00");

function countdown () {
 if(!document.getElementById) return;
 var obj = document.getElementById("count");
 var now = new Date();
 var dif = xday.getTime() - now.getTime();

 if(dif < 0) return;
 var days = Math.floor(dif / (24*60*60*1000));
 dif = dif % (24*60*60*1000);
 var hours = Math.floor(dif / (60*60*1000));
 dif = dif % (60*60*1000);
 var mins = Math.floor(dif / (60*1000));
 dif = dif % (60*1000);
 var secs = Math.floor(dif / 1000);
 var str = "<strong>"
 + days + "日"
 + hours + "時間"
 + mins + "分"
 + secs + "秒<\/strong>";
 obj.innerHTML = str;
 setTimeout("countdown();", 1000);
}