var timeoutID;

function fadeOut(id, time) {
	target = document.getElementById(id);
	alpha = 100;
	timer = (time*1000)/50;
	var i = setInterval(
			function() {
				if (alpha <= 0)
					clearInterval(i);
				setAlpha(target, alpha);
				alpha -= 2;
			}, timer);
}

function fadeIn(id, time) {
	target = document.getElementById(id);
	alpha = 0;
	timer = (time*1000)/50;
	var i = setInterval(
			function() {
				if (alpha >= 100)
					clearInterval(i);
				setAlpha(target, alpha);
				alpha += 2;
			}, timer);
}

function setAlpha(target, alpha) {
	target.style.filter = "alpha(opacity="+ alpha +")";
	target.style.opacity = alpha/100;
}

function getGaleria(idGal) {
	var url = "get_galeria_ajax.php?id="+idGal;
	var ajx = new AJAX();
    
	ajx.url = url;
    ajx.modo = 'T';
    ajx.processaresultado = function(r){
    	document.getElementById("fotos_galeria").innerHTML = r;
    	//fadeIn('galeria_selecionada',0.5);
    	document.getElementById("ft_sel").click();
    }
    ajx.conectar();
}

function getFoto(idFoto) {
	var url = "get_foto_ajax.php?id="+idFoto;
	var ajx = new AJAX();
    
	ajx.url = url;
    ajx.modo = 'T';
    ajx.processaresultado = function(r){
    	document.getElementById("galeria_selecionada").innerHTML = '';
    	document.getElementById("galeria_selecionada").innerHTML = r;
    	fadeIn('galeria_selecionada',0.5);
    }
    ajx.conectar();
	
}


/**
* Funcionamento do scroll de galeria de Imagens
*/
function scrollUp() {
	document.getElementById("galeria_dir").scrollTop += 1
}
function scrollDown(){
	document.getElementById("galeria_dir").scrollTop -= 1
}

function next() {
	var div = document.getElementById('galeria_dir');
	
	if(div.scrollTop < div.scrollHeight) {
		timeoutID = setInterval('scrollUp()',8);
	}
}
function prior() {
	var div = document.getElementById('galeria_dir');
	
	if(div.scrollTop < div.scrollHeight) {
		timeoutID = setInterval('scrollDown()',8);
	}
	
}

function stopScroll() {
	clearInterval(timeoutID);
}
/************************************************/



function showBoxGaleria(conteudo,event){
  caixa = document.all ? document.all.boxGaleria : document.getElementById("boxGaleria");
  
  caixa.innerHTML = conteudo;
  caixa.style.visibility = "visible";
  caixa.style.top = event.clientY + document.body.scrollTop + 15;
  caixa.style.left = event.clientX + document.body.scrollLeft + 15;
}

function hideBoxGaleria(){
	caixa = document.all? document.all.boxGaleria : document.getElementById("boxGaleria");
	caixa.style.visibility = "hidden";
}