var mostrandoInfo=false;
var maximizado=false;
var npagina;
npagina=1;
var imagenAnterior=new Image();
imagenAnterior.src="images/mini/Ferrva (1).jpg";
var imagenSiguiente=new Image();
imagenSiguiente.src="images/mini/Ferrva (2).jpg";
var ant=1;
var sig=3;

window.onload = function() {
	initImage()
}

function initImage() {	
	//setOpacity(document.getElementById('marcobig'),0);
	//document.getElementById('tu_id').style.width='50px';	
	new Effect.BlindUp('marcobig');
	new Effect.BlindUp('info');
	imageId = 'thephoto';
	image = document.getElementById(imageId);
	setOpacity(image, 0);
	image.style.visibility = 'visible';
	fadeIn(imageId,0);  
}

function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 30;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
	
  }
}


function next(){	
	if( npagina<314){		
		npagina++;
		sig=npagina+1;
	
	image = document.getElementById("thephoto");
	setOpacity(image,0);
	imagenAnterior.src=image.src;
	image.src=imagenSiguiente.src;
	image.onload=function(){fadeIn("thephoto",0);}
	imagenSiguiente.src="images/mini/Ferrva ("+sig+").jpg";
	}
	
}


function back(){	
	if( npagina>1){
		npagina--;
		ant=npagina-1;
	
		
	image = document.getElementById("thephoto");
	setOpacity(image,0);
	imagenSiguiente.src=image.src;
	image.src=imagenAnterior.src;
	image.onload=function(){fadeIn("thephoto",0);}
	imagenAnterior.src="images/mini/Ferrva ("+ant+").jpg";
	}
	
}

function setPagina(pagina){	
	npagina=pagina;	
	image = document.getElementById("thephoto");
	setOpacity(image,0);
	sig=npagina+1;
	imagenSiguiente.src="images/mini/Ferrva ("+sig+").jpg";	
	ant=npagina-1;
	imagenAnterior.src="images/mini/Ferrva ("+ant+").jpg";	
	image.src="images/mini/Ferrva ("+npagina+").jpg";
	image.onload=function(){fadeIn("thephoto",0);}
		
}


function ampliar(){
		image = document.getElementById("thephotobig");		
		image.src="images/max/Ferrva%20("+npagina+").jpg";
		document.getElementById('marcobig').style.height='708px';
		//image.width=image.width*2;
		image.onload=function(){muestraImagenBig();}		
		//marcobig = document.getElementById("marcobig");
		//marcobig.style.height=700;
		//marco=document.getElementById("marcobig").style.height='708px';
		//visible('marcobig');		
		new Effect.Fade('thephoto');
		new Effect.Fade('indice');
		new Effect.Fade('fondoHoja');
		new Effect.Fade('botones');
		new Effect.Appear('precarga');
		
		
}

function muestraImagenBig(){
	new Effect.Fade('precarga');
	new Effect.BlindDown('marcobig');
	new Effect.Appear('marcobig');
	
}


function reducir(){
	/*image = document.getElementById("thephotobig");		
		image.src="images/max/Ferrva%20("+npagina+").jpg";
		//image.width=image.width*2;
		//image.onload=function(){fadeIn("thephotobig",0);}		
		//marcobig = document.getElementById("marcobig");
		//marcobig.style.height=700;
		 marco=document.getElementById("marcobig").style.height='0px';		 
		 */

		new Effect.BlindUp('marcobig');
		new Effect.Appear('thephoto');
		new Effect.Appear('indice');
		new Effect.Appear('fondoHoja');
		new Effect.Appear('botones');
		new Effect.BlindUp('info');
		mostrandoInfo=false;

}

function mostrarInfo(){
	if( !mostrandoInfo){
		new Effect.BlindDown('info');
		mostrandoInfo=true;
	}

	//setOpacity(document.getElementById('marcobig'),50);	
}

function cerrarInfo(){
	new Effect.BlindUp('info');
	mostrandoInfo=false;
}


//funciones AJAX

function realizarPeticion(sCadenaURL) {
  var oScript = document.createElement('script');
  oScript.src = sCadenaURL;
  document.body.appendChild(oScript);
}
 
function procesarRespuesta(nResultado) {
  oResultado = document.getElementById('resultado');
 
  if (nResultado=='1') {
    oResultado.className = 'ocupado';
    oResultado.innerHTML = 'Nombre Ocupado';
  }
  else {
    oResultado.className = 'libre';
    oResultado.innerHTML = 'Nombre Libre';
  }
}
 
function comprobarNombre() {
  sCadenaURL = 'proceso.php?nombre=' + document.getElementById('nombre').value;
  realizarPeticion(sCadenaURL);
}


function enviarEmail(){	
	sCadenaURL = 'mail.php?nombre='+document.getElementById('nombre').value+'&mail='+document.getElementById('mail').value+'&comentarios='+document.getElementById('comentarios').value;
	realizarPeticion(sCadenaURL);	
	cerrarInfo();
}