function adArray() {
 for (i=0; i*2<adArray.arguments.length; i++) {
 this[i] = new Object();
 this[i].src = adArray.arguments[i*2];
 this[i].href = adArray.arguments[i*2+1];
 }
 this.length = i;
 }
 function getAdNum() {
 dat = new Date();
 dat = (dat.getTime()+"").charAt(8);
 if (dat.length == 1)
 ad_num = dat%ads.length;
 else
 ad_num = 0;
 return ad_num;
 }

 var ads = new adArray(
 "images/front_page/df_baptism_rotate.jpg", // This is easy all you do is enter the image src first
 "df/df_main1.html", // Then the link to the site for the above image
 "images/front_page/df_baptism_poster_rotate.jpg",
 "df/df_main1.html",
 "images/front_page/df_baptism_rotate.jpg",
 "df/df_main1.html",
 "images/front_page/df_the_farewell_rotate.jpg",
 "df/df_main1.html",
 "images/front_page/ed_moontide_mugs_rotate.jpg",
 "ed/ed_main1.html",
 "images/front_page/hd_moon_over_rotate.jpg",
 "hd/hd_main1.html",
 "images/front_page/hd_over_the_fence_rotate.jpg",
 "hd/hd_main1.html" // No comma after the last entry
 );

 var ad_num = getAdNum();

 document.write('<A href="'+ads[ad_num].href+'" target="_top"><IMG SRC="'+ads[ad_num].src+'" '
 +'height="252" width="240" border="0" name="adswap"></a>');
 // You can change the height and the width of the link images above

 link_num = document.links.length-1;

 function rotateSponsor() {
 if (document.images) {
 ad_num = (ad_num+1)%ads.length;
 document.adswap.src = ads[ad_num].src;
 document.links[link_num].href = ads[ad_num].href;
 setTimeout("rotateSponsor()",8000);
 }
 }
 setTimeout("rotateSponsor()",8000);
 // Change both the 4000s above to how long you want to show the banner
 // 4000 is 4 seconds, 5000 would be 5 seconds