var supersleight = function(){
	var root = false;
	var applyPositioning = true;
	
	// Path to a transparent GIF image
	var shim			= 'layout/default/media/transparent.gif';
	
	// RegExp to match above GIF image name
	var shim_pattern	= /layout\/default\/media\/transparent\.gif$/i;
	
	
	
	var fnLoadPngs = function() { 
		root = (root ? document.getElementById(root) : document);
		for (var i = root.all.length - 1, obj = null; (obj = root.all[i]); i--) {
			// background pngs
			if(obj.currentStyle.backgroundImage.match(/\.png/i) !== null)
				bg_fnFixPng(obj);
			
			// image elements
			if(obj.tagName == 'IMG' && obj.src.match(/\.png$/i) !== null)
				el_fnFixPng(obj);
			
			// apply position to 'active' elements
			if(applyPositioning && (obj.tagName == 'A' || obj.tagName == 'INPUT') && obj.style.position === '')
				obj.style.position = 'relative';
		}
	};

	var bg_fnFixPng = function(obj) {
		var mode = 'scale';
		var bg	= obj.currentStyle.backgroundImage;
		var src = bg.substring(5,bg.length-2);
		if (obj.currentStyle.backgroundRepeat == 'no-repeat') {
			mode = 'crop';
		}
		obj.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + src + '", sizingMethod="' + mode + '")';
		obj.style.backgroundImage = 'url(' + shim + ')';
	};

	var el_fnFixPng = function(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 = shim;
	};
	
	return {
		init : function() { 
			addLoadEvent(fnLoadPngs);
		},
		
		limitTo : function(el) {
			root = el;
		},
		
		run : function() {
			fnLoadPngs();
		}
	};
}();