docs: function(featOrFilt, fsys) {
          if (typeof fsys == "string") {
              featOrFilt.id = parseInt(fsys);
              featOrFilt.string = fsys;
          }
          // is this a proj4js instance?
          else if (typeof fsys == "object" && fsys.proj !== null){
              featOrFilt.id = fsys.proj.srsProjNumber;
              featOrFilt.string = fsys.proj.srsCode;
          } else {
              featOrFilt = fsys;
          }
      }