if (document.images) {
  MnuBook_f2 = new Image(130 ,32); MnuBook_f2.src = "images/MnuBook_f2.gif";
  MnuBook_f1 = new Image(130 ,32); MnuBook_f1.src = "images/MnuBook.gif";
  MnuAuthor_f2 = new Image(160 ,32); MnuAuthor_f2.src = "images/MnuAuthor_f2.gif";
  MnuAuthor_f1 = new Image(160 ,32); MnuAuthor_f1.src = "images/MnuAuthor.gif";
  MnuContact_f2 = new Image(183 ,32); MnuContact_f2.src = "images/MnuContact_f2.gif";
  MnuContact_f1 = new Image(183 ,32); MnuContact_f1.src = "images/MnuContact.gif";
  MnuEvents_f2 = new Image(217 ,32); MnuEvents_f2.src = "images/MnuEvents_f2.gif";
  MnuEvents_f1 = new Image(217 ,32); MnuEvents_f1.src = "images/MnuEvents.gif";
  BtnMoreInfo_f2 = new Image(106 ,22); BtnMoreInfo_f2.src = "images/BtnMoreInfo_f2.gif";
  BtnMoreInfo_f1 = new Image(106 ,22); BtnMoreInfo_f1.src = "images/BtnMoreInfo.gif";
  }