function pngfix() {
if (document.all) {
var i, a, f;
for(i=0; (a = document.getElementsByTagName("img")[i]); i++) {
if (a.className=="pnga") {
f = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+a.src+"')";
a.src = "images/blank.png"; // Blank image required
a.style.filter = f;
}
}
}
}