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];}
}

// ==================== preload mouse over images ====================
function preLoadAll () {
	MM_preloadImages('/media/img/blocks/wie_is_noor_over.jpg', '/media/img/blocks/wat_doet_noor_over.jpg', '/media/img/blocks/waar_is_noor_over.jpg', '/media/img/loading.gif', '/media/img/terug_wie.jpg', '/media/img/terug_wat.jpg', '/media/img/terug_waar.jpg');
}
addLoadEvent (preLoadAll);


// ==================== portfolio functions ====================

function showPort(iPort) {
	if (typeof(iPort) == 'undefined') iPort = 0;

	// show preloader
	$('bullet'+iPort).src = 'media/img/loading.gif';

	//set description label
	//$('wat_label').innerHTML = aDesc[iPort];

	// start preloading image
	var xImg=new Image;
	xImg.src=aURL[iPort];
	//set loaded image
	$('wat_img').src = xImg.src; //aURL[iPort];

	//highlight button
	highLightButton(iPort);

}
var bFirstTime = true, bKeepBlinking = true;
function highLightButton(iPort) {
	var aBullet = getElementsByClass('wat_bullet',$('wat_content'),'img'); 
	for (var iB = 0; iB < aBullet.length; iB++) {
		//console.log(aBullet[iB]);
		aBullet[iB].src = 'media/img/show_port.jpg';
	}
	$('bullet'+iPort).src = 'media/img/show_port_H.jpg';

	if (bFirstTime) {
		bFirstTime = false;
		intrvl=0;
		for(nTimes=0;nTimes<50;nTimes++){
			intrvl += 150;
			setTimeout("setImg('media/img/show_port.jpg');",intrvl);
			intrvl += 150;
			setTimeout("setImg('media/img/show_port_H.jpg');",intrvl);
		}
	} else {
	//	console.log('stop it!');
		bKeepBlinking = false;
	}
}

function setImg(sSrc) {
	if (bKeepBlinking) {
		$('bullet1').src = sSrc;
	}
}