var sBrowser=navigator.userAgent.toLowerCase();
var supersleight	= function() {
	
	var root = false;
	var applyPositioning = true;
	
	// Path to a transparent GIF image
	var shim			= 'Images/x.gif';
	// RegExp to match above GIF image name
	var shim_pattern	= /x\.gif$/i;
	
	
	
	var fnLoadPngs = function(appPath) { 
		if (root) {
			root = document.getElementById(root);
		}else{
			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, appPath);
			}
			// image elements
			if (obj.tagName=='IMG' && obj.src.match(/\.png$/i) !== null){
				el_fnFixPng(obj, appPath);
			}
			// 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, appPath) {
		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(' + appPath + '/' + shim + ')';
	};

	var el_fnFixPng = function(img, appPath) {
		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 = appPath + '/' + shim;
	};
	
	var addLoadEvent = function(func) {
		var oldonload = window.onload;
		if (typeof window.onload != 'function') {
			window.onload = func;
		} else {
			window.onload = function() {
				if (oldonload) {
					oldonload();
				}
				func();
			};
		}
	};
	
	return {
				
		limitTo: function(el) {
			root = el;
		},
		
		run: function(appPath) {
		    if(sBrowser.indexOf("msie") != -1)
            {
			    fnLoadPngs(appPath);
			}
		}
	};
}();