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_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_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_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}

function toggleDiv(divname, visibility) {
	MM_changeProp(divname,'','style.visibility',visibility,'DIV');
}

function toggleDiv2(divname, display) {
	MM_changeProp(divname,'','style.display',display,'DIV');
}

function popupshow(img) {
	document.getElementById("popupimg").src=img.src;
	document.getElementById("popupimg").alt=img.alt;
	
	if(document.all){
	    var scrollbar = document.documentElement.scrollTop;
	    var scrollhoogte = document.documentElement.scrollHeight;
    }
    else{
	    var scrollbar = pageYOffset;
	    var scrollhoogte = document.documentElement.scrollHeight;
    }
	var breedtescherm = document.body.offsetWidth;
	var hoogtescherm = document.body.offsetHeight;
	var div = document.getElementById('popupdiv');
	div.style.display='block';
	div.style.marginTop=scrollbar+((hoogtescherm-div.clientHeight)/2)+"px";
	div.style.marginLeft=((breedtescherm-div.clientWidth)/2)+"px";
}

var loading = new Image;
loading.src = "/images/loading.gif"

function showImg(i) {
	if (document.getElementById("img_plaatje_groot").src!=pic[i]) {
		document.getElementById("img_plaatje_groot").src=loading.src;
	}
	document.getElementById("img_plaatje_groot").src=pic[i];
	toggleDiv("plaatje_groot", "visible");
}

var pic = new Array()

function showImgAlt(i) {
	if (document.getElementById("img_plaatje_groot").src!=pic[i]) {
		document.getElementById("img_plaatje_groot").src=loading.src;
	}
	document.getElementById("img_plaatje_groot").src=pic[i];
	document.getElementById("img_plaatje_groot").alt=alt[i];
	document.getElementById("fototoel").innerHTML=alt[i];
	toggleDiv("plaatje_groot_500", "visible");
}

var alt = new Array()

function openWindow(url){
	window.open(url,"WPopup",'location=yes,scrollbars=yes,resizable=yes,status=yes,menubar=yes,toolbar=yes');
}

function ass_topmenu(img, uitimg, aanimg) {
	
	if (img.src=="http://"+document.domain+"/"+uitimg) {
		img.src="http://"+document.domain+"/"+aanimg;
	}
	else if (img.src=="http://"+document.domain+"/"+aanimg) {
		img.src="http://"+document.domain+"/"+uitimg;
	}
}