<!-- Original:  Rich Galichon (rich@galichon.net) -->
<!-- Web Site:  http://www.galichon.net -->
<!-- Begin
function banner(imgSource,url,alt,chance) {
this.imgSource = imgSource;
this.url = url;
this.alt = alt;
this.chance = chance;
}
function dispBanner() {
with (this) document.write("<a href=" + url + "><img src='" + imgSource + "' width=638 height=50 alt='" + alt + "'></a>");
}
banner.prototype.dispBanner = dispBanner;
banners = new Array();
banners[0] = new banner("/design/accueil/banniere_4.gif","http://boutique.delarbre.com/","Achetez en ligne sur la boutique Delarbre",1);
banners[1] = new banner("/design/accueil/banniere_4.gif","http://boutique.delarbre.com/","Achetez en ligne sur la boutique Delarbre",1);

///////////////////////////////////////////////////
// banners[x] = new banner(<banner source image>,                                           
//                         <url to link to when the banner is clicked>,                     
//                         <alt>                                                            
//                         <the chance this banner has in which to be randomly selected>);  
// To increase the chance of a banner being randomly selected, increase it's corresponding  
// 'chance' property relative to the other banners.                                         
///////////////////////////////////////////////////
sum_of_all_chances = 0;
for (i = 0; i < banners.length; i++) {
sum_of_all_chances += banners[i].chance;
}
function randomBanner() {
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("<a href=" + banners[i].url + "><img src='" + banners[i].imgSource + "' width=638 height=50 alt='" + banners[i].alt + "'></a>");
return banners[i];
break;
      }
   }
}
//  End -->
