how to add edit button in for this function (Javascript)

     function fillAccess(s,e)
   {

           var utype=cmbModule.GetText();
            var code=cmbModule.GetValue();
//            clear();
           // getrows();
            if(utype!="<-Select->")
            {
                var xml;
                if (window.XMLHttpRequest)
                {
                    // code for all new browsers
                    xml=new XMLHttpRequest();
                }
                else if (window.ActiveXObject)
                {
                    // code for IE5 and IE6
                    xml=new ActiveXObject("Microsoft.XMLHTTP");
                }

                var sURL = "../WebRequest.asmx/GetDynamic"
                xml.open( "POST", sURL, false );
                xml.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
                var str1="code="+code+"&utype="+utype;
                xml.send(str1)
                lsval=xml.responseText;
                   //  clear();
                 // var butt = document.createElement('clickMe');

               // btn.value = entry.email;
                if(lsval!="")
                {
                var trr="<table border='1'>";
                    arReceived = lsval.split("^^^");
                    for(i=0;i<arReceived.length-1;i++)
                    {

                        var btn=document.getElementById("clickMe").innnerHTML="Edit";
                        trr= trr+"<tr>";
                        arToBind = arReceived[i].split("|");


                        for(var j=0;j<arToBind.length-1;j++)
                        {
                            trr= trr+"<td>"+arToBind[j]+"</td>";

                        }
                       trr= trr+"<td>"+btn+"</td>";

                        trr= trr+"</tr>";

                    }
                }  trr= trr+    "</table>";
            }
            document.getElementById("dd").innerHTML= trr;
   }