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                                 "http://www.dtl.org/books/images/ads/banners/alt_cv.gif",
                                 "http://www.dtl.org/books/images/ads/banners/dbbv.gif",
                                 "http://www.dtl.org/books/images/ads/banners/nwt.gif",
                                 "http://www.dtl.org/books/images/ads/banners/swb.gif");


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  var bannerImageCount = 6;

  
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  // end hiding script from old browsers -->