code: function bindSliderEvents ( behaviour ) {
  
              // Attach the standard drag event to the handles.
              if ( !behaviour.fixed ) {
  
                  scope_Handles.forEach(function( handle, index ){
  
                      // These events are only bound to the visual handle
                      // element, not the 'real' origin element.
                      attachEvent ( actions.start, handle.children[0], eventStart, {
                          handleNumbers: [index]
                      });
                  });
              }
  
              // Attach the tap event to the slider base.
              if ( behaviour.tap ) {
                  attachEvent (actions.start, scope_Base, eventTap, {});
              }
  
              // Fire hover events
              if ( behaviour.hover ) {
                  attachEvent (actions.move, scope_Base, eventHover, { hover: true });
              }
  
              // Make the range draggable.
              if ( behaviour.drag ){
  
                  scope_Connects.forEach(function( connect, index ){
  
                      if ( connect === false || index === 0 || index === scope_Connects.length - 1 ) {
                          return;
                      }
  
                      var handleBefore = scope_Handles[index - 1];
                      var handleAfter = scope_Handles[index];
                      var eventHolders = [connect];
  
                      addClass(connect, options.cssClasses.draggable);
  
                      // When the range is fixed, the entire range can
                      // be dragged by the handles. The handle in the first
                      // origin will propagate the start event upward,
                      // but it needs to be bound manually on the other.
                      if ( behaviour.fixed ) {
                          eventHolders.push(handleBefore.children[0]);
                          eventHolders.push(handleAfter.children[0]);
                      }
  
                      eventHolders.forEach(function( eventHolder ) {
                          attachEvent ( actions.start, eventHolder, eventStart, {
                              handles: [handleBefore, handleAfter],
                              handleNumbers: [index - 1, index]
                          });
                      });
                  });
              }
          }
docs: Attach events to several slider parts.