// General Functions
function ExecAjax(url,parameters,func_create,func_success,func_complete,func_error,async){
	var rand = Math.round(Math.random() * 2000);
	parameters=rand+"&"+parameters;
		
	if(async!=true){async=false;}else{async=true;}
	
	var result = new String();
	var objetoAjax = new Ajax.Request(
		url, 
		{
			method: 'GET', 
			encoding: 'ISO-8859-1',
			parameters: parameters, 
			onCreate : function(){if(func_create) eval(func_create);},
			onSuccess : function(){if(func_success) eval(func_success);},
			onComplete: function(transport){
				//alert("Ajax Result: "+transport.responseText);
				eval(func_complete);
			},
			onFailure:  function(){
				if(func_error==null){
					alert("Error: Action has not been executed correctly.");
				} else {
					eval(func_error);
				}
			},
			asynchronous : async
		});
	return result;
}

function addFavCookie(video_id,update){
	document.cookie ='favorite_videos['+video_id+']='+video_id+'; expires=Tue, 30 Apr 2030 23:59:59 UTC; path=/';	
	if(update){
		$('favstar_off_'+video_id).hide();
		$('favstar_on_'+video_id).show();
	}
	alert(labels['video_added_to_favorites']);
}

function deleteFavCookie(video_id,update){
	document.cookie ='favorite_videos['+video_id+']=""; expires=Wed, 25 Apr 2000 00:00:00 UTC; path=/';	
	if(update){
		$('favstar_on_'+video_id).hide();
		$('favstar_off_'+video_id).show();	
	}
	alert(labels['video_removed_from_favorites']);
}

<!-- inicio el pop-under-->

var popup_url = "http://www.malisimas.com"
var atributos = ""
var pop_under = 1 //1-sera un "pop under", es decir, no se muestra como ventana activa

function muestra_popup(){
  popup_vfmail = window.open( popup_url, "videosporno", atributos)
  if (pop_under) {
    popup_vfmail.blur() //esto esconde el popup (comentar si se quiere visible)
    window.focus() //esto devuelve el foco a la ventana actual
  }
}

<!-- fin pop-under-->
//-->