preview_book=new Image(20,280)
preview_book.src="preview_book.jpg"

preview_book_mouseover=new Image(20,280)
preview_book_mouseover.src="preview_book_mouseover.jpg"



pre_pub_offer=new Image(20,280)
pre_pub_offer.src="pre_pub_offer.jpg"

pre_pub_offer_mouseover=new Image(20,280)
pre_pub_offer_mouseover.src="pre_pub_offer_mouseover.jpg"



notify_when_available=new Image(20,280)
notify_when_available.src="notify_when_available.jpg"

notify_when_available_mouseover=new Image(20,280)
notify_when_available_mouseover.src="notify_when_available_mouseover.jpg"