// JavaScript Document


function load(){	
var tween;
var indiceFoto;
var flag;
var p;


	indiceFoto = 0;
 	flag = 1;
 	asignarBotonesNav();
 	asignarVisibilidadNav();



/*--------------------------------SLIDE*/

function asignarBotonesNav(){
 $('prev').addEvent('click', function(){
											goPrev()});
 $('next').addEvent('click', function(){
											goNext()});
}
 
function goPrev(){
 if(indiceFoto != 0){
  indiceFoto--
  showImg(indiceFoto)
 }
 asignarVisibilidadNav()
}
 
function goNext(){
 if(indiceFoto < 4){
  indiceFoto++
  showImg(indiceFoto)
 }
 asignarVisibilidadNav()
}
 
function asignarVisibilidadNav(){
 if(indiceFoto == 0){
  $('prev').setStyle('visibility','hidden');
 }else{
  $('prev').setStyle('visibility','visible');
 }
 
 if(indiceFoto == 4){
  $('next').setStyle('visibility','hidden');
 }else{
  $('next').setStyle('visibility','visible');
 }
}
 
function showImg(target){
 indiceFoto = target;
 asignarVisibilidadNav()
 tween = new Fx.Morph($('listaVideos'),{
  duration:1000,
  transition:Fx.Transitions.Cubic.easeOut,
 })
 tween.start({'margin-left':target*-78})
}
}



window.onload = load;