// JavaScript Document
var currentThumbsPage = 0;
var currentFoto = 0;

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 getThumbs(id) {
	document.getElementById('page' + currentThumbsPage).style.display = "none";
	currentThumbsPage = id;	
	document.getElementById('page' + id).style.display = "block";
	
}

function showFoto(id) {
	currentFoto = id;
	var data = "";
	document.getElementById("bigPicture").innerHTML = '<img src="upload/cropped/' + fotos[id][1] +   '" width="280" height="280" />';
	
	
	if (fotos[id][2] != '') data += '<strong>Materiaal:</strong> ' + fotos[id][2] + '<br />';
	if (fotos[id][3] != '') data += '<strong>Afmeting:</strong> ' + fotos[id][3] + '<br />';
	if (fotos[id][4] != '') data += '<strong>Prijs:</strong> &euro; ' + fotos[id][4] + '<br />';
	if (fotos[id][5] != '') data += '<strong>Omschrijving:</strong> ' + unescape(fotos[id][5]) + '<br />';
	document.getElementById("pictureData").innerHTML = data;
}

function showNext() {
	if ((currentFoto+1) < fotos.length) {
		if ((currentFoto+1)%12 == 0) getThumbs(currentThumbsPage+1);
		showFoto(currentFoto+1);
	} else {
		getThumbs(0);
		showFoto(0);
	}
}

function showPrevious() {
	if ((currentFoto-1) < 0) {
		getThumbs(((fotos.length)/12)-1);
		showFoto(fotos.length-1) 
		
	} else {
		if ((currentFoto-1)%12 == 11) getThumbs(currentThumbsPage-1);
		showFoto(currentFoto-1);
	}
}