// JavaScript Document
function rotar_imagenes(tipo){
	if(tipo == 'mas'){
		if( k < (imagenes.length-1) ){
			k= k+1;
		}else{
			k = 0;
		}
	}else if(tipo == 'menos'){
		if( k == 0){
			k = imagenes.length-1;
		}else{
			k= k-1;
		}
	}
	cambiarImagen(imagenes[k]);
}
function cambiarImagen(imagen) {
	imageId = 'imagen';
	image = document.getElementById(imageId);
	//setOpacity(image, 0);
	//image.style.visibility = "visible";
	//image.src = imagen;
	//fadeIn(imageId,0);
	id = buscarId( imagen, imagenes );
	image.src = imagen;
	document.getElementById("numero").innerHTML = id+1;
	document.getElementById("pies").innerHTML = pies[id];
	k = id;
	
	/*imagenActual = document.getElementById("imagenes" + (id+1));
	imagenActual.class = "bordeGaleria";
	alert(imagenActual.class);*/
}
function fadeIn(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
		if (opacity <= 100) {
			setOpacity(obj, opacity);
			opacity += 10;
			window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
		}
	}
}
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;
	// Mozilla y Firefox anteriores
	obj.style.MozOpacity = opacity/100;
	// Safari 1.2, Firefox y Mozilla recientes, CSS3
	obj.style.opacity = opacity/100;
}

function buscarId( searchS, arraySA ) {
 var I = 0;
 var minI = 0;
 var maxI = arraySA.length - 1;
 //
 var s = "";
 //
 var foundB = false;
 //
 I = minI - 1;
 while ( ( I <= maxI ) && ( !( foundB ) ) ) {
  I = I + 1;
  s = arraySA[ I ];
  foundB = ( searchS == s );
  }
 if ( foundB ) {
  return( I );
 }
 else {
  return( -1000 ); // some negative number indicating not found
 }
}