var CachedWebRoot;
function correctPNG(WebRoot) {
    if (WebRoot != null) {
        CachedWebRoot = WebRoot;
    }
    if (CachedWebRoot != null) {
        is = document.getElementsByTagName('IMG');
        for (x = 0; x < is.length; x++) {
            if (is[x].src.toLowerCase().indexOf('.png') >= 0) {
                is[x].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + is[x].src + "', sizingMethod='scale')";
                is[x].src = CachedWebRoot + 'images/_protected/spacer.gif';
            }
        }
        is = document.getElementsByTagName('INPUT');
        for (x = 0; x < is.length; x++) {
            if (is[x].src.toLowerCase().indexOf('.png') >= 0) {
                is[x].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + is[x].src + "', sizingMethod='scale')";
                is[x].src = CachedWebRoot + 'images/_protected/spacer.gif';
            }
        }
    }
}