function addEvent( obj, type, fn ) {//Esta función permite más de un evento window.onload
  if ( obj.attachEvent ) {
    obj['e'+type+fn] = fn;
    obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
    obj.attachEvent( 'on'+type, obj[type+fn] );
  } else
    obj.addEventListener( type, fn, false );
}
function removeEvent( obj, type, fn ) {
  if ( obj.detachEvent ) {
    obj.detachEvent( 'on'+type, obj[type+fn] );
    obj[type+fn] = null;
  } else
    obj.removeEventListener( type, fn, false );
}
/*-------------------------*/
//Necesitamos encontrar elementos por clase. Incluimos función para Iexplorer, en Firefox 3 es nativo.
document.getElementsByClassName = function(className, parentElement) {
  if (Prototype.BrowserFeatures.XPath) {
    var q = ".//*[contains(concat(' ', @class, ' '), ' " + className + " ')]";
    return document._getElementsByXPath(q, parentElement);
  } else {
    var children = ($(parentElement) || document.body).getElementsByTagName('*');
    var elements = [], child;
    for (var i = 0, length = children.length; i < length; i++) {
      child = children[i];
      if (Element.hasClassName(child, className))
        elements.push(Element.extend(child));
    }
    return elements;
  }
};
/*-------------------------*/
function TJK_SetOverlay_vid(){ // v 1.0 Copyright 2006, Thierry Koblentz - TJKDesign.com. All rights reserved.
	if(!document.getElementsByTagName)return;
    var arrImages = document.getElementsByClassName("mmedia_vid");
    var arrImgToFix = new Array();
    var zImages;
	var classCount = 0;
    for(var i=0; i<arrImages.length; i++){
	zImages = arrImages[i].src.slice(arrImages[i].src.lastIndexOf("/")+1,arrImages[i].src.length);
	arrImgToFix[classCount]=arrImages[i];
	classCount++;
        
    }
	
	for(var x = 0, y = arrImages.length; x < y; x++){
		if(arrImgToFix[x]){	
		arrImgToFix[x].style.backgroundImage="url(" + arrImgToFix[x].src + ")";
		arrImgToFix[x].style.backgroundSize="80px";
		// we go two ways: non IE Win and IE Win
			if (!arrImgToFix.push || !document.all){
				arrImgToFix[x].src="/estilo/img/vid.png";
			}else{
				arrImgToFix[x].style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled='true',src='../estilo/img/vid.png',sizingMethod='scale')";		
				arrImgToFix[x].src="/estilo/img/transparent.gif";
			}
		}
	}
}

/*----------------------*/

function TJK_SetOverlay_fla(){ // v 1.0 Copyright 2006, Thierry Koblentz - TJKDesign.com. All rights reserved.
	if(!document.getElementsByTagName)return;
    var arrImages = document.getElementsByClassName("mmedia_fla");//Modificado para identificar elementos por clase
    var arrImgToFix = new Array();
    var zImages;
	var classCount = 0;
    for(var i=0; i<arrImages.length; i++){
	zImages = arrImages[i].src.slice(arrImages[i].src.lastIndexOf("/")+1,arrImages[i].src.length);
	arrImgToFix[classCount]=arrImages[i];
	classCount++;
        
    }
	
	for(var x = 0, y = arrImages.length; x < y; x++){
		if(arrImgToFix[x]){	
		arrImgToFix[x].style.backgroundImage="url(" + arrImgToFix[x].src + ")";
// we go two ways: non IE Win and IE Win
			if (!arrImgToFix.push || !document.all){
				arrImgToFix[x].src="/estilo/img/fla.png";
			}else{
				arrImgToFix[x].style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled='true',src='/estilo/img/fla.png',sizingMethod='scale')";		
				arrImgToFix[x].src="/estilo/img/transparent.gif";
			}
		}
	}
}

/*----------------------*/

function TJK_SetOverlay_img(){ // v 1.0 Copyright 2006, Thierry Koblentz - TJKDesign.com. All rights reserved.
	if(!document.getElementsByTagName)return;
    var arrImages = document.getElementsByClassName("mmedia_img");
    var arrImgToFix = new Array();
    var zImages;
	var classCount = 0;
    for(var i=0; i<arrImages.length; i++){
	zImages = arrImages[i].src.slice(arrImages[i].src.lastIndexOf("/")+1,arrImages[i].src.length);
	arrImgToFix[classCount]=arrImages[i];
	classCount++;
        
    }
	
	for(var x = 0, y = arrImages.length; x < y; x++){
		if(arrImgToFix[x]){	
		arrImgToFix[x].style.backgroundImage="url(" + arrImgToFix[x].src + ")";
// we go two ways: non IE Win and IE Win
			if (!arrImgToFix.push || !document.all){
				arrImgToFix[x].src="/estilo/img/img.png";
			}else{
				arrImgToFix[x].style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled='true',src='/estilo/img/img.png',sizingMethod='scale')";		
				arrImgToFix[x].src="/estilo/img/transparent.gif";
			}
		}
	}
}