function pngfixcollection(coll){
  for (var i=0; i<coll.length; i++){
    var item = coll[i];
    if (item.className.search("alpha") == -1) continue;
    //if (item.src.search(".png") == -1) continue;
    item.style.width = item.clientWidth;
    item.style.height = item.clientHeight;
    item.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+item.src+"');";
    item.src = "/images/clear.gif";
  }
}

function pngfix(){
  if (navigator.userAgent.search("MSIE 6") == -1)
    if (navigator.userAgent.search("MSIE 5") == -1)
      return;
  
  var imgs = document.getElementsByTagName('img');
  pngfixcollection(imgs);
  var inputs = document.getElementsByTagName('input');
  pngfixcollection(inputs);
  
}