var curSlide = 0;
var timer = null;
var stopped = false;
var numSlides = 0;
var arraySlides = new Array();
var elem;
var timeBetweenBanner = 6000;


function banner_next() {
	if (curSlide > numSlides - 1) {
		curSlide = 0;
	}

	elem = arraySlides[curSlide];
	elem.style.display = 'none';

	curSlide++;

	if (curSlide > numSlides - 1) 	{
		curSlide = 0;
	}

	elem = arraySlides[curSlide];
	elem.style.display = "";

	if(!stopped) {
		clearTimeout(timer);
		start();
	}
}

function banner_prev() {
	if (curSlide > numSlides - 1) {
		curSlide = 0;
	}

	elem = arraySlides[curSlide];
	elem.style.display = 'none';

	curSlide--;

	if (curSlide < 0) {
		curSlide = numSlides - 1;
	}

	elem = arraySlides[curSlide];
	elem.style.display = '';

	if(!stopped) {
		clearTimeout(timer);
		start();
	}
}

function stopstart(img) {
	if (stopped) {
		start();
	} else {
		stop();
	}
}

function stop() {
	if (!(stopped)) {
		clearTimeout(timer);
		stopped = true;
		//document.getElementById('ImagePause').src = '/uploaded/amiaes/images/player_pausa_over.gif';
	}
}

function start() {
	timer = setTimeout('banner_next()', timeBetweenBanner);
	stopped = false;
	//document.getElementById('ImagePause').src = '/uploaded/amiaes/images/player_pausa.gif';
}

function beginSlides() {
	var elem = document.getElementById('slider');
	var elems = elem.getElementsByTagName('DIV');

	var numberOfElem;

	numberOfElem = 0;
	for(i = 0; i < elems.length; i++) {
		if (elems[i].id == 'bannerhome') {
			arraySlides[numberOfElem] = elems[i];
			numberOfElem++;
		}
	}

	//arraySlides = document.getElementsByName("notaprincipal");

	numSlides = arraySlides.length;

	for (i = 0; i <= numSlides; i++) {
		var elem = arraySlides[i];
		if (elem) {
			elem.style.display = 'none';
		}
	}

	curSlide = 0;
	var firstSlide = arraySlides[0];
	if (firstSlide) {
		firstSlide.style.display = '';
		start();
	}
}