code: function(sType, aArgs, oSelf) {
          var source = aArgs[0];
          
          // Add source to the internal array of filters
          oSelf._sourceFilters.push(source);
  
          if(oSelf._elFt) {
              oSelf._createSourceCheckbox(source);
          }
      }
docs: Handles Logger's sourceCreateEvent.
  
  @method _onSourceCreate
  @param sType {String} The event.
  @param aArgs {Object[]} Data passed from event firer.
  @param oSelf {Object} The LogReader instance.
  @private