function fixPNG(element){
  if (/MSIE (5\.5|6).+Win/.test(navigator.userAgent)){
    var src;
    if (element.tagName=='IMG'){
      if (/\.png$/.test(element.src)){ src = element.src; element.src = "/images/blank.gif"; }
    } else {
      src = element.currentStyle.backgroundImage.match(/url\("(.+\.png)"\)/i)
      if (src){ src = src[1]; element.runtimeStyle.backgroundImage="none"; }
    }
    if (src) element.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "',sizingMethod='scale')";
  }
}