IE6 = (navigator.userAgent.indexOf('MSIE 6') != -1)
function makeRoundedCorner() {
  imgs = document.getElementsByTagName("IMG");
  for(var i=0; i<imgs.length; i++) {
    if(hasClassName(imgs[i],"roundedCorner")) {
      wrapper = wrapNode(imgs[i],"div","roundedCornerWrapper");
      cornerMask = document.createElement("span");
      cornerMask.className="cornerBottomRight";
      wrapper.appendChild(cornerMask);
    }
  }
}
if(!IE6) {
  registerEventListener(window,"load",makeRoundedCorner);
}