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javascript server time script giving me NaN NaN [closed]

var weekdaystxt=["Sun", "Mon", "Tues", "Wed", "Thurs", "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")? 'August 31, 2007 22:41:04' : (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=this.localtime.toLocaleString()

    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)+" "+ampm+" ("+dayofweek+")"

    }

    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>12)? num-12 : num

        return (hour==0)? 12 : hour

    }

    return (num<=9)? "0"+num : num//if this is minute or sec field

}

       

new showLocalTime("timecontainer", "server-ssi", 0, "short")

       

new showLocalTime("timecontainer", "server-php", 0, "short")