var elmImg = document.getElementById("featuredPrizeImg");
var elmLnk = document.getElementById("featuredPrizelnk");
var elmDsc = document.getElementById("prizeDescription");
var curOpacNum;
var nxtOpacNum;
var curDv = 3;
var nxtDv = 0;
opacTimer = setInterval(changeDiv, 2000);            
function doFade() {
    curOpacNum -= 3;
    nxtOpacNum += 3;
    changeOpac(document.getElementById("hdrRotate" + curDv), curOpacNum);    
    changeOpac(document.getElementById("hdrRotate" + nxtDv), nxtOpacNum);    
    if (curOpacNum <= 0) {
        document.getElementById("hdrRotate" + curDv).style.display = "none";    
        clearInterval(opacTimer);
        opacTimer = setInterval(changeDiv, 2000);            
    }
}

function changeDiv() {
    curOpacNum = 100;
    nxtOpacNum = 0;
    curDv = (curDv == roDvs-1 ? 0 : curDv + 1);
    nxtDv = (nxtDv == roDvs-1 ? 0 : nxtDv + 1);
    changeOpac(document.getElementById("hdrRotate" + nxtDv), nxtOpacNum);    
    document.getElementById("hdrRotate" + nxtDv).style.display = "";    
    clearInterval(opacTimer);
    opacTimer = setInterval(doFade, 20);
}
function changeOpac(elm, opacity) {
    elm.style.opacity = (opacity / 100);
  	elm.style.MozOpacity = (opacity / 100);
  	elm.style.KhtmlOpacity = (opacity / 100);
  	elm.style.filter = "alpha(opacity=" + opacity + ")";
}