How do I make NPC's walk to a specific spot timed?

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I tried this script <style type="text/css">

.jsclass body .randomcontent{ /Do NOT remove! CSS to hide random contents in JS enabled browsers/ display: none; }

</style>

<script type="text/javascript">

/*********************************************** * Random Content (from DIVs) script- by JavaScript Kit (www.javascriptkit.com) * This notice must stay intact for usage * Visit JavaScript Kit at http://www.javascriptkit.com/ for this script and 100s more ***********************************************/

if (document.getElementById) document.documentElement.className = 'jsclass'; //hide content for DOM capable browsers

var randomcontentdisplay={ divholders:new Object(), masterclass: "randomcontent",

init:function(){
    if (!document.getElementById)
        return
    var alldivs=document.getElementsByTagName("div")
    var randomcontentsearch=new RegExp(this.masterclass+"\\s+(group\\d+)", "i") //check for CSS class="randomcontent groupX" (x=integer)
    for (var i=0; i<alldivs.length; i++){
        if (randomcontentsearch.test(alldivs[i].className)){
            if (typeof this.divholders[RegExp.$1]=="undefined") //if array to hold this group of divs doesn't exist yet
                this.divholders[RegExp.$1]=new Array() //create array first
                this.divholders[RegExp.$1].push(alldivs[i]) //add this div to the array
        }
    }
this.showone()
},

showone:function(){
    for (group in this.divholders){ //loop thru each array within object
        var chosenOne=Math.floor(Math.random()*this.divholders[group].length) //randomly pick one entry from array
        this.divholders[group][chosenOne].style.display="block" //display content corresponding to the chosen entry
    }
}

}

</script>

Im not pretty sure it works but I tried