Google map distance for database data

var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
var n;
function InitializeMap()
{

    directionsDisplay = new google.maps.DirectionsRenderer();
    var latlng = new google.maps.LatLng(-34.397, 150.644);
    var myOptions =
    {
        zoom: 11,
        center: latlng,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map = new google.maps.Map(document.getElementById("map"), myOptions);


    directionsDisplay.setMap(map);
            directionsDisplay.setPanel(document.getElementById('directionpanel'));

    var control = document.getElementById('control');
    control.style.display = 'block';

document.getElementById('sorttable').style.display="none"

}
    function calcRoute(dist,val)
    {
alert(val);
    var start = document.getElementById('startvalue').value;
    var end = document.getElementById(dist).innerHTML;
     end=end.replace(/[!@#$%&^*()-+=|\/:;><~]/gi," ");

    var request = {
        origin: start,
        destination: end,
        travelMode: google.maps.DirectionsTravelMode.DRIVING
    };
    directionsService.route(request, function (response, status)
    {
        if (status == google.maps.DirectionsStatus.OK)
         {

         document.getElementById('sorttable').style.display="block";
         document.getElementById("total").style.visibility="hidden";
            directionsDisplay.setDirections(response);
            var route = response.routes[0];
            //alert(val);
             for (var i = 0; i < route.legs.length; i++)
             {
              //alert(route.legs.length);
             //var array_list=[];
                 var a=route.legs[i].distance.text;
                 var b=route.legs[i].duration.text;

                 var bc=a+",About :"+b;

                 var lblid="Labe"+val;
                  //alert(lblid);
                document.getElementById(lblid).innerHTML=bc;

              
        }



        }
      }
    );

    }


function Button1_onclick()
{

document.getElementById('sorttable').style.display="block";
n=document.getElementById('Countnumbers').value;
for(var j=1; j<=n;j++)
{

        var ss="lblstorename"+j;
        var ss1 =document.getElementById(ss).innerHTML;
        var store="lblstore"+j;
        document.getElementById(store).title=ss1;
        calcRoute(ss,j);

  }

}