包括外部代码

我有下面的代码来在页面中显示日期/时间。当我把代码写在index.php中时，它运行得很好。当我试着用来称呼它时

<script type="text/javascript" src="scripts/clock.js">

不工作。

我需要改变什么吗？非常感谢。

var weekdaystxt=["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
function showLocalTime(container, servermode, offsetMinutes, displayversion){
if (!document.getElementById || !document.getElementById(container)) return
this.container=document.getElementById(container)
this.displayversion=displayversion
var servertimestring=(servermode=="server-php")? '<? print date("D, F jS Y H:i:s", time())?>' : (servermode=="server-ssi")? '<!--#config timefmt="%B %d, %Y %H:%M:%S"--><!--#echo var="DATE_LOCAL" -->' : '<%= Now() %>'
this.localtime=this.serverdate=new Date(servertimestring)
this.localtime.setTime(this.serverdate.getTime()+offsetMinutes*60*1000) //add user offset to server time
this.updateTime()
this.updateContainer()
}
showLocalTime.prototype.updateTime=function(){
var thisobj=this
this.localtime.setSeconds(this.localtime.getSeconds()+1)
setTimeout(function(){thisobj.updateTime()}, 1000) //update time every second
}
showLocalTime.prototype.updateContainer=function(){
var thisobj=this
if (this.displayversion=="long")
this.container.innerHTML='<? print date("D, F jS Y")?>'
else{
var hour=this.localtime.getHours()
var minutes=this.localtime.getMinutes()
var seconds=this.localtime.getSeconds()
var ampm=(hour>=12)? "PM" : "AM"
var dayofweek=weekdaystxt[this.localtime.getDay()]
this.container.innerHTML=formatField(hour, 1)+":"+formatField(minutes)+":"+formatField(seconds)+" (UTC +2)"
}
setTimeout(function(){thisobj.updateContainer()}, 1000) //update container every second
}
function formatField(num, isHour){
if (typeof isHour!="undefined"){ //if this is the hour field
var hour=(num>24)? num-24 : num
return (hour==0)? 24 : hour
}
return (num<=9)? "0"+num : num//if this is minute or sec field
}