Corona SDK collision problem

[emerson1234567890]

I am developing my first mobile application with Corona SDK. This is the rule of my game: I have this ball and when it collides with the end of the maze, it will show a dialog box that you passed the level. I tried adding a collision listener at the finish line, but it doesn't work. The code I used DOES show the dialog box, but it happens that the dialog box popups when the ball collides with EVERY border I have (not the finish line).
Here is the code I have so far(part of it):

    local ball = display.newImage("ball3.png", _W, _H);
    ball:setReferencePoint(display.CenterReferencePoint);
    ball.x = 350; ball.y = 100;

    local borderend = display.newRect( 65, 55, 20, 100 )
    borderend:setFillColor( 0, 0, 0, 0)		-- make invisible
    physics.addBody( borderend, "static", borderBodyElement )        
  
		 
    local function onLocalCollision( self, event )
            if ( event.phase == "began" ) then
				    local alert = native.showAlert( "You Passed The level!", "", { "Level2", "Main Menu" }, onBackComplete )
    
          end
    end
	
    ball.collision = onLocalCollision
    ball:addEventListener( "collision", ball)

    borderend.collision = onLocalCollision
    borderend:addEventListener( "collision", borderend )

Can anyone help me show the dialog box when the ball collides with the finish line but not every border I have?

[emerson1234567890]

Can someone please reply because I waited for 3 months and I stil have this problem

[KarlJay]

Have you tried their tech support or forums? They should have some sample code online.