// JavaScript Document
var PNG = Class.create({
	initialize: function(image_replace){
		this.replaceImage = image_replace;
	},
	findAndReplace: function(){
		if(navigator.userAgent.toString().toLowerCase().indexOf('msie 6')!=-1){
			var images = document.getElementsByTagName('img');
			
			for(var i=0; i<images.length; i++){
				if(images[i].src.toString().indexOf('png')!=-1){
					this.carregarPNGIE(images[i]);
				}
			}
		}
	},
	carregarPNGIE: function (obj){
		var w = obj.width;
		var h = obj.height;
		var src = obj.src;
		obj.src = this.replaceImage;
		obj.width = w;
		obj.height = h;
		obj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "',sizingMethod='scale')";
	}
});