trekInfo.js

 else if (LayerDataMapArr != undefined && LayerDataMapArr.maptype.trim() != '' && LayerDataMapArr.maptype == "webtile") {
        map.removeAllLayers();
        if (LayerDataMapArr != undefined) {
          var layerDatastrUrl = LayerDataMapArr.baseurl;
          var layerDatafinalUrl = LayerDataMapArr.baseurl;

          map.centerAndZoom([LayerDataMapArr.lon, LayerDataMapArr.lat], LayerDataMapArr.zoom);
         // console.log(layerDatafinalUrl);
          var WebTiledLayerOptions = {
              "baseurl": layerDatafinalUrl,
              "classtype": LayerDataMapArr.classtype,
              "copyright": LayerDataMapArr.copyright,
              "copyrighturl": LayerDataMapArr.copyrighturl,
              "desc": LayerDataMapArr.desc,
              "image": LayerDataMapArr.image,
              "lat": LayerDataMapArr.lat,
              "lon": LayerDataMapArr.lon,
              "maxzoom": parseInt(LayerDataMapArr.maxzoom),
              "minzoom": parseInt(LayerDataMapArr.minzoom),
              "name": LayerDataMapArr.name,
              "shortname": LayerDataMapArr.shortname,
              "tileresolvertype": LayerDataMapArr.tileresolvertype,
              //"zoom": LayerDataMapArr.zoom,
              "zoom": parseInt((parseInt(LayerDataMapArr.maxzoom) + parseInt(LayerDataMapArr.minzoom)) /2),
              //"opacity": LayerDataMapArr.alpha
          };
         
          var addMapLayer = new WebTiledLayer(layerDatafinalUrl, WebTiledLayerOptions );
          
          //set the getTitleUrl
          addMapLayer.getTileUrl = function(level, row, column) {
            basemapInfoBM = LayerDataMapArr.shortname;
            zoomInfo = level;
            var pointBMx = map.extent.getCenter();
            pointBM = webMercatorUtils.webMercatorToGeographic(pointBMx);
            if (LayerDataMapArr.alturl) {

              for (var zm = 0; zm < LayerDataMapArr.alturl.length; zm++) {
               // console.log('has_alturl')
                if (level <= LayerDataMapArr.alturl[zm].maxzoom) {
                  finalFilterUrl = replaceURLString(level, row, column, LayerDataMapArr.alturl[zm].url);
                  return finalFilterUrl;
                }
              }
            }
           
            //if out of range of alturl, use baseurl
            finalFilterUrl = replaceURLString(level, row, column, layerDatafinalUrl);
              
            return finalFilterUrl;
          };


          map.addLayer(addMapLayer);
        }