/*CONTROL DE VENTOS*/
	function addEvent(obj, evType, fn)
	{ 
	 if (obj.addEventListener){ 
	   obj.addEventListener(evType, fn, false); 
	   return true; 
	 } else if (obj.attachEvent){ 
	   var r = obj.attachEvent("on"+evType, fn); 
	   return r; 
	 } else { 
	   return false; 
	 } 
	}
/*PNG*/
	function PNG_loader()
	{
		if(navigator.appName.indexOf("Explorer") != -1)
		{
			  for(var i=0; i<document.images.length; i++) {
				var img = document.images [i];
				var imgName = img.src.toUpperCase();
				if (imgName.substring(imgName.length-3, imgName.length) == "PNG") {
				  var imgID = (img.id ) ? "id='" + img.id + "' " : "";
				  var imgClass = (img.className) ? "class='" + img.className + "' " : "";
				  var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' ";
				  var imgStyle = "display:inline-block;" + img.style.cssText;
				  if (img.align == "left") imgStyle += "float:left;";
				  if (img.align == "right") imgStyle += "float:right;";
				  if ( img.parentElement.href) imgStyle += "cursor:hand;";
				  var strNewHTML = "<span " + imgID + imgClass + imgTitle
					 + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
					 + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
					 + "(src=\'" + img.src + "\');\"></span>";
				  img.outerHTML = strNewHTML;
				  i--;
				}
			  }
		}
	} 
/*GATILLAR PNG*/
	addEvent(window, 'load', PNG_loader);