diff --git a/webapp/web/js/supersleight.js b/webapp/web/js/supersleight.js
deleted file mode 100644
index 39ee3fce8..000000000
--- a/webapp/web/js/supersleight.js
+++ /dev/null
@@ -1,41 +0,0 @@
-//Fix Transparent PNGs in IE6
-jQuery.fn.supersleight = function(settings) {
-	settings = jQuery.extend({
-		imgs: true,
-		backgrounds: true,
-		shim: 'x.gif',
-		apply_positioning: true
-	}, settings);
-	
-	return this.each(function(){
-		if (jQuery.browser.msie && parseInt(jQuery.browser.version, 10) < 7 && parseInt(jQuery.browser.version, 10) > 4) {
-			jQuery(this).find('*').andSelf().each(function(i,obj) {
-				var self = jQuery(obj);
-				// background pngs
-				if (settings.backgrounds && self.css('background-image').match(/\.png/i) !== null) {
-					var bg = self.css('background-image');
-					var src = bg.substring(5,bg.length-2);
-					var mode = (self.css('background-repeat') == 'no-repeat' ? 'crop' : 'scale');
-					var styles = {
-						'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='" + mode + "')",
-						'background-image': 'url('+settings.shim+')'
-					};
-					self.css(styles);
-				};
-				// image elements
-				if (settings.imgs && self.is('img[src$=png]')){
-					var styles = {
-						'width': self.width() + 'px',
-						'height': self.height() + 'px',
-						'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + self.attr('src') + "', sizingMethod='scale')"
-					};
-					self.css(styles).attr('src', settings.shim);
-				};
-				// apply position to 'active' elements
-				if (settings.apply_positioning && self.is('a, input') && (self.css('position') === '' || self.css('position') == 'static')){
-					self.css('position', 'relative');
-				};
-			});
-		};
-	});
-};
\ No newline at end of file