title: Slideshow forward code overriding back button code
body: <p>This code in scene1...  </p>
  
  <pre><code>local composer = require ( "composer")
    local scene = composer.newScene()
  
      local function showScene2()
              local options = {
                  effect = "slideLeft",
                      time = 130,
                      }
    composer.gotoScene("scene2", options)
    end
  </code></pre>
  
  <p>...is overriding this code, also in scene1...</p>
  
  <pre><code>local object = display.newImage("images/goBackBtn.png", 240, 250)
    object.name = "button object"
  
    local function onObjectTap( self, event )
    composer.gotoScene( "firstBar1" )
          return true
              end
    object.tap = onObjectTap
    object:addEventListener( "tap", object )
    sceneGroup:insert( object )
  </code></pre>
  
  <p>The back button works. It shows the firstBar1 scene, but only for an instant. </p>
  
  <p>Then the next scene, scene2, comes on screen and the slideshow continues. (The order is firstBar1, scene1, scene2, scene3 and so on). All the scenes have a back button to firstBar1.</p>
  
  <p>Why won't the slideshow go back to firstBar1 and stop there? How can I correct it?</p>
  
  <p>This is related to a previous query which one commentator suggested I clarify:  "Back button does not navigate to required scene". </p>
  
  <p>Thanks.</p>