function banner(img_source,url,alt,chance) {
   this.img_source = img_source;
   this.url = url;
   this.alt = alt;
   this.chance = chance;
}
function display() {
//   with (this) document.write("<a href=" + url + "><img src='" + img_source + "' width=214 height=104 border=0 alt='" + alt + "'></a>");
   with (this) document.write("<img src='" + img_source + "' width=214 height=104 border=0 alt='" + alt + "'>");
}
function displayRotatingBanner(httpSite)
{
banner.prototype.display = display;
banners = new Array();
banners[0] = new banner("national/en/US/images/banners/zl_214x104_economy_aveo_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Economy Aveo 2006",
                        12);
banners[1] = new banner("national/en/US/images/banners/zl_214x104_compact_colbalt_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Compact Colbalt 2006",
                        12);
banners[2] = new banner("national/en/US/images/banners/zl_214x104_midsize_g6_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Midsize G6 2006",
                        12);
banners[3] = new banner("national/en/US/images/banners/zl_214x104_fullsize_impala_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Fullsize Impala 2006",
                        12);
banners[4] = new banner("national/en/US/images/banners/zl_214x104_premium_lucerne_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Premium Lucerne 2006",
                        12);
banners[5] = new banner("national/en/US/images/banners/zl_214x104_luxury_dts_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Luxury DTS 2006",
                        12);
banners[6] = new banner("national/en/US/images/banners/zl_214x104_convertible_sebring_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Convertible Sebring 2006",
                        12);												
banners[7] = new banner("national/en/US/images/banners/zl_214x104_midsizesuv_equinox_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Midsize SUV Equinox 2006",
                        12);
banners[8] = new banner("national/en/US/images/banners/zl_214x104_standardsuv_trailblazer_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Standard SUV Trailblazer 2006",
                        12);
banners[9] = new banner("national/en/US/images/banners/zl_214x104_fullsizesuv_envoy_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Fullsize SUV Envoy 2006",
                        12);
banners[10] = new banner("national/en/US/images/banners/zl_214x104_minivan_uplander_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Minivan Uplander 2006",
                        12);
banners[11] = new banner("national/en/US/images/banners/zl_214x104_luxurysuv_escalade_2006.jpg",
                        httpSite+"/resRentalInfo.do",
                        "National Luxury SUV Escalade 2006",
                        12);
																														
sum_of_all_chances = 0;
for (i = 0; i < banners.length; i++) {
   sum_of_all_chances += banners[i].chance;
}
display_banner();
}
function display_banner() {
   chance_limit = 0;
   randomly_selected_chance = Math.round((sum_of_all_chances - 1) * Math.random()) + 1;
   for (i = 0; i < banners.length; i++) {
      chance_limit += banners[i].chance;
      if (randomly_selected_chance <= chance_limit) {
         document.write('<img src="' + banners[i].img_source + '" width=214 height=104 border=0 alt="' + banners[i].alt + '">');
//         document.write("<a href="../national/common/scripts/ + banners[i].url + "><img src='" + banners[i].img_source + "' width=214 height=104 border=0 alt='" + banners[i].alt + "'></a>");
         return banners[i];
         break;
      }
   }
}