倒计时提交问题~！一刷新就重新计时了~能不能通过SESSION 让时间刷新也不变？

<SCRIPT language=javascript>
<!--

var DifferenceHour = -1
var DifferenceMinute = -1
var DifferenceSecond = -1
var Tday = new Date()
var daysms = 24 * 60 * 60 * 1000
var hoursms = 60 * 60 * 1000
var Secondms = 60 * 1000
var microsecond = 1000

function clock()
{
var time = new Date()
var hour = time.getHours()
var minute = time.getMinutes()
var second = time.getSeconds()
var timevalue = ""+((hour > 12) ? hour-12:hour)
timevalue +=((minute < 10) ? ":0":":")+minute
timevalue +=((second < 10) ? ":0":":")+second
timevalue +=((hour >12 ) ? " PM":" AM")
// document.formnow.now.value = timevalue
var convertHour = DifferenceHour
var convertMinute = DifferenceMinute
var convertSecond = DifferenceSecond
var Diffms = Tday.getTime()+<%=session("ttime")%>*60*1000

为什么MP3里边的文件删不掉？只要一刷新就会重新出现！ 一刷新桌面上就剩下????????????? IE不能刷新.一刷新..就出现一个窗口 QQ空间不能刷新，一刷新就关闭。急急 我一刷新桌面就假死 电脑一刷新就调用*.dll程序 电脑屏幕一刷新上面就暗一下 为什么我在百度提的问题一刷新就没有了?悬赏分也没还我~!555~! 电脑问题。急救。我电脑一开机点刷新！就出现了这些。高手进 倒计时一周年主题歌