// JavaScript Document
function monta_lista() {
	var combo = document.form_imagens_list.imagens_lista;
	combo.options.length = 0;
	var nImages = imagens_array.length;
	for (var i=0; i<nImages; i++) {
		combo.options[i] = new Option(imagens_array[i].label,i);
	}
	qAtual = Math.floor(nImages*Math.random());
	combo.options[qAtual].selected = true;
	jAtual = 0;
	comboImagensChanged();
}

function changeImagem(q) {
	var combo = document.form_imagens_list.imagens_lista;
	combo.selectedIndex = q;
	comboImagensChanged();
}

function comboImagensChanged() {
	var combo = document.form_imagens_list.imagens_lista;
	var i = combo.selectedIndex;
	mostraImagem(combo.options[i].value,0);
}

function mostraImagem(q,j) {
	//título
	MM_setTextOfLayer('imagens_titulo','','<h2 class="titulo1">'+imagens_array[q].title+'</h2>');
	//imagem
	MM_swapImage('imagens_imagem','',imagens_array[q].imgs[j].img,1)
	//legenda
	if (imagens_array[q].imgs[j].subtitle!=null && imagens_array[q].imgs[j].subtitle != '') {
		MM_setTextOfLayer('fotos_legenda','','<span>'+imagens_array[q].imgs[j].subtitle+'</span>');
	} else {
		MM_setTextOfLayer('fotos_legenda','','');
	}
	//setas
	var nImgs = imagens_array[q].imgs.length;
	MM_showHideLayers('seta_left' ,'',(j>0)?'show':'hide');
	MM_showHideLayers('seta_right','',(j<nImgs-1)?'show':'hide');
	//layers
	var nImages = imagens_array.length;
	for (var i=0; i<nImages; i++) {
		if (imagens_array[i].div!=null) displayHideLayers(imagens_array[i].div,'',(i==q)?'show':'hide');
	}
	qAtual = q;
	jAtual = j;
}

function nextImg() {
	mostraImagem(qAtual,jAtual+1);
}

function prevImg() {
	mostraImagem(qAtual,jAtual-1);
}

function MM_setTextOfLayer(objId,x,newText) { //v9.0
  with (document) if (getElementById && ((obj=getElementById(objId))!=null))
    with (obj) innerHTML = unescape(newText);
}
function displayHideLayers() { //adaptado da funcao MM_showHideLayers v9.0 para alterar o estilo 'display' ao invés de 'visibility'.
  var i,p,v,obj,args=displayHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'block':(v=='hide')?'none':v; }
    obj.display=v; }
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_showHideLayers() { //v9.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}