var ads = new adArray("phillycheese.gif","pumpkin.gif");



function adArray() {
 for (i=0; i<adArray.arguments.length; i++) {
  this[i] = new Object();
  this[i].src = adArray.arguments[i];
 }
 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 ad_num = getAdNum(); 
link_num = document.links.length-1;

function rotateSponsor() {
 if (document.images) {
  ad_num = (ad_num+1)%ads.length;
  document.getElementById('shakeofmonth').style.background = "url('img/shake/"+ads[ad_num].src+"') no-repeat";
  //document.js_ad.src = ads[ad_num].src;
  //document.links[link_num].href = ads[ad_num].href;
  setTimeout("rotateSponsor()",5000);
 }
}
//setTimeout("rotateSponsor()",5000);