/********************************
/*
/* PAGE INITIALIZATION
/*
/*******************************/

// DEFINE CONSTANTS
var ERROR_STR = '-:enTropico_!ERROR!_enTropico:-';
var SUCCESS_STR = '-:enTropico_!SUCCESS!_enTropico:-'
var n = 0;//Is used by clickImgAnterior and clickImgsiguiente

// set onLoad event handler to page
addEvent(window, 'load', initPage, false);

//initialize page elements
function initPage() 
{	
	//menu
	menu();
	
	if(document.getElementById('ant'))
	{
		var btnImgAnt = document.getElementById('ant');
		addEvent(btnImgAnt, 'click', clickImgAnterior, false);
	}
	
	if(document.getElementById('sig'))
	{
		var btnImgSig = document.getElementById('sig');
		addEvent(btnImgSig, 'click', clickImgSiguiente, false);
	}
	
	if(document.getElementById('ampliaImagen'))
	{
		var ImgAmp = document.getElementById('ampliaImagen');
		addEvent(ImgAmp, 'click', ampliarImg, false);
	}
	
	//click handler for btnShowAllComments
	var btnAmpliar = document.getElementById('divampliarNews');
	addEvent(btnAmpliar, 'click', clickAmpliar, false);
	
	//click handler for btnShowAllComments
	var btnCerrar = document.getElementById('divCerrarNews');
	addEvent(btnCerrar, 'click', clickCerrar, false);

}

function menu (e){document.getElementById('News').src = 'images/internas/b_news_on.gif';}

function clickAmpliar(e)
{
	//show button "cerrar"
	document.getElementById('divCerrarNews').style.display='block';
	//show info in div "detalles"
	document.getElementById('divExpanded').style.display='block';
	//hide button "ampliar"
	document.getElementById('divampliarNews').style.display='none';
}

function clickCerrar(e)
{
	//show button "cerrar"
	document.getElementById('divampliarNews').style.display='block';
	//show info in div "detalles"
	document.getElementById('divExpanded').style.display='none';
	//hide button "ampliar"
	document.getElementById('divCerrarNews').style.display='none';
}

function clickImgSiguiente(e)
{

	var length =  imagenes.length;
	
	if(n<length -1)
		n++;
	else
		n=0;
	
	drawImagen(n);
	
}

function clickImgAnterior(e)
{

	var length = imagenes.length;
	
	if(n==0)
		n=length - 1;
	else
		n--;
	
	drawImagen(n);
}

function drawImagen(n)
{
	
		var newTitulo = imagenes[n][2];
		var newRuta   = imagenes[n][0];
		var newAlt    = imagenes[n][1];
		
		//get nombre image from span
		var nombreImagen = document.getElementById('nombre');
		nombreImagen.innerHTML='<br />'+newTitulo;
		
		var numFoto = document.getElementById('numFoto');
		numFoto.innerHTML='Foto '+(n+1)+'';
		//nombreImagen.firstChild.nodeValue =eval('imagenes'+idVademecum+'[0 +'+'n][2]');

		//get id from image for change propertys
		var imagen= document.getElementById('imagen');

		//set propertys to display new image
		imagen.src = newRuta;
		imagen.alt = newAlt;

}

function ampliarImg (e)
{
	
	if(imagenes)
	{
		var img = document.getElementById('imagen');
		
		var y = img.height;
		
		var newRutaLarge   = imagenes[n][3];
		
		var popup = window.open(newRutaLarge,'plop','width=400,'+'height='+(y*3.3));
		popup.focus();	
	}	
}