preview_book=new Image(18,252)
preview_book.src="buttons/17_book_pub_announcement.jpg"

preview_book_mouseover=new Image(18,252)
preview_book_mouseover.src="buttons/18_book_pub_announcement_mouseover.jpg"



pre_pub_offer=new Image(18,252)
pre_pub_offer.src="buttons/19_yankee_announcement.jpg"

pre_pub_offer_mouseover=new Image(18,252)
pre_pub_offer_mouseover.src="buttons/20_yankee_announcement_mouseover.jpg"