im new and trying to learn
and i got this code from Ghosts vs. Monsters
but i really can NOT make it to restart
i have tried, tried and tried but i just cant figure it out!!!!
please help!!!

-- restart button
local reBtn

local onReTouch = function( event )
if event.phase == "release" and not isLevelSelection and reBtn.isActive then
audio.play( tapSound )

local localGroup = display.newGroup()

local theTimer
local loadingImage

local showReLoadingScreen = function()
loadingImage = display.newImageRect( "loading.png", 320, 480 )
loadingImage.x = 160; loadingImage.y = 240

end

showReLoadingScreen()

local goToLevel = function()
director:changeScene( "level1" )
end

end
end

reBtn = ui.newButton{
defaultSrc = "restartbtn.png",
defaultX = 60,
defaultY = 60,
overSrc = "restartbtn-over.png",
overX = 60,
overY = 60,
onEvent = onReTouch,
id = "RestartButton",
text = "",
font = "Helvetica",
textColor = { 255, 255, 255, 255 },
size = 16,
emboss = false
}

reBtn.x = 160 reBtn.y = 440
reBtn.alpha = 100
localGroup:insert( reBtn )

return localGroup

end

end