// preload images
TitleBook = new Image()
TitleBook.src = "images/fun/funbook.gif"
Innocent = new Image()
Innocent.src = "images/fun/innocent.jpg"
Inpersuasion = new Image()
Inpersuasion.src = "images/fun/inpersuasion.jpg"
Skipper = new Image()
Skipper.src = "images/fun/skipper_cover.jpg"