function show(){
if (!document.all)
return
var Digital=new Date()
var hours=Digital.getHours()
var minutes=Digital.getMinutes()
var seconds=Digital.getSeconds()
if (hours>24){
hours=hours-24
}
if (hours==0)
hours=00
if (minutes<=9)
minutes="0"+minutes
if (seconds<=9)
seconds="0"+seconds
var time=+hours+" : "+minutes+" : "+seconds
tick.innerHTML=time
setTimeout("show()",1000)
}