Add pngfix to javascript lib

1 files changed, 17 insertions, 0 deletions

diff --git a/itjs/it.js b/itjs/it.js
index f701261..407688c 100644
--- a/itjs/it.js
+++ b/itjs/it.js
@@ -206,3 +206,20 @@ function it_url_encode(str)
 
 	return result.replace(/%20/gi, "+").replace(/%2C/gi, ",").replace(/%3B/gi, ";").replace(/%28/gi, "(").replace(/%29/gi, ")");
 }
+
+/**
+ * Patch PNG transparency for IE 5.5-6 on the given image
+ */
+function it_pngfix(img, w, h)
+{
+	var old_IE = navigator.platform == "Win32" && String(navigator.userAgent).match(/MSIE ((5\.5)|6)/);
+	if (img.src && img.src.match(/\.png($|\?)/) && old_IE) {
+		img.style.width = (w || img.width) + 'px';
+		img.style.height = (h || img.height) + 'px';
+		img.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+img.src+"',sizingMethod='crop')";
+		img.src = '/images/0.gif';
+	}
+	else if (img && old_IE)
+		img.style.filter = 'none';
+}
+