计算你站点的开业时间

效果：

<script>
montharray=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")

function countup(yr,m,d){
today=new Date()
todayy=today.getYear()
if (todayy < 1000)
todayy+=1900
todaym=today.getMonth()
todayd=today.getDate()
todaystring=montharray[todaym]+" "+todayd+", "+todayy
paststring=montharray[m-1]+" "+d+", "+yr
difference=(Math.round((Date.parse(todaystring)-Date.parse(paststring))/(24*60*60*1000))*1)
difference+=" 天"
document.write("我的网站开业至今有 "+difference+"了 ")
}
//按(年，月，日)的格式填入你的站点开业日期
countup(2002,5,17)
</script>