I've been using a script written by, I think, nokiko on the old forum for a couple of years now. I put the following line in my default.aspx where the dnncore javascript files are loaded... <script language="javascript" src="<%= Page.ResolveUrl("dnnsleight.js") %>"></script>.
You'll also need a file called trans.gif which is a 1x1 pixel transparent gif. Both transparent.gif and dnnsleight.js are kept in the root directory of DNN. The code for dnnsleight.js is the following:
if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
document.writeln('<style type="text/css">img, input.image { visibility:hidden; } </style>');
window.attachEvent("onload", fnLoadPngs);
}
function
fnLoadPngs() {
var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);
for (var i = document.images.length - 1, img = null; (img = document.images[i]); i--) {
if (itsAllGood && img.src.match(/\.png$/i) != null) {
fnFixPng(img);
img.attachEvent("onpropertychange", fnPropertyChanged);
}
img.style.visibility = "visible";
}
var nl = document.getElementsByTagName("INPUT");
for (var i = nl.length - 1, e = null; (e = nl[i]); i--) {
if (e.className && e.className.match(/\bimage\b/i) != null) {
if (e.src.match(/\.png$/i) != null) {
fnFixPng(e);
e.attachEvent("onpropertychange", fnPropertyChanged);
}
e.style.visibility = "visible";
}
}
}
function
fnPropertyChanged() {
if (window.event.propertyName == "src") {
var el = window.event.srcElement;
if (!el.src.match(/x\.gif$/i)) {
el.filters.item(0).src = el.src;
el.src = "http://www.gmss.org/trans.gif";
}
}
}
function
dbg(o) {
var s = "";
var i = 0;
for (var p in o) {
s += p + ": " + o[p] + "\n";
if (++i % 10 == 0) {
alert(s);
s = "";
}
}
alert(s);
}
function
fnFixPng(img) {
var src = img.src;
img.style.width = img.width + "px";
img.style.height = img.height + "px";
img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='scale')"
img.src = http://www.gmss.org/trans.gif;
}