var rancom=Math.ceil(Math.random()*kwartet.length)-1;

var names=new Array();

names[1]=kwartet[rancom].p1; names[2]=kwartet[rancom].p2; 
names[3]=kwartet[rancom].p3; names[4]=kwartet[rancom].p4; 

var refs= new Array();

refs[1]=kwartet[rancom].p1 + '.html'; refs[2]=kwartet[rancom].p2 + '.html'; 
refs[3]=kwartet[rancom].p3 + '.html'; refs[4]=kwartet[rancom].p4 + '.html'; 



var portret1='<a href="#" onClick="openWindow(1)"><img src="http://www.triasdigitaal.nl/images/portretten/portret_' + names[1] + '.jpg" width="124" height="122" alt="" border="0" vspace="13" hspace="5" name="c1"></a>';
var kop1='<a href="#" onClick="openWindow(1)"><img src="http://www.triasdigitaal.nl/images/kopK/kopK_' + names[1] + '.gif" width="238" alt="" border="0" vspace="10" name="k1"></a>';

var portret2='<a href="#" onClick="openWindow(2)"><img src="http://www.triasdigitaal.nl/images/portretten/portret_' + names[2] + '.jpg" width="124" height="122" alt="" border="0" vspace="13" hspace="5" name="c2"></a>';
var kop2='<a href="#" onClick="openWindow(2)"><img src="http://www.triasdigitaal.nl/images/kopK/kopK_' + names[2] + '.gif" width="238" alt="" border="0" vspace="10" name="k2"></a>';

var portret3='<a href="#" onClick="openWindow(3)"><img src="http://www.triasdigitaal.nl/images/portretten/portret_' + names[3] + '.jpg" width="124" height="122" alt="" border="0" vspace="13" hspace="5" name="c3"></a>';
var kop3='<a href="#" onClick="openWindow(3)"><img src="http://www.triasdigitaal.nl/images/kopK/kopK_' + names[3] + '.gif" width="238" alt="" border="0" vspace="10" name="k3"></a>';

var portret4='<a href="#" onClick="openWindow(4)"><img src="http://www.triasdigitaal.nl/images/portretten/portret_' + names[4] + '.jpg" width="124" height="122" alt="" border="0" vspace="13" hspace="5" name="c4"></a>';
var kop4='<a href="#" onClick="openWindow(4)"><img src="http://www.triasdigitaal.nl/images/kopK/kopK_' + names[4] + '.gif" width="238" alt="" border="0" vspace="10" name="k4"></a>';


var doc_base=location.href.substring(0, location.href.lastIndexOf('/')+1);
var windowSwap=false;

function shuffle()
{

	var oldRef=''; var oldName='';
	
	oldRef = refs[1]; refs[1] = refs[clicked];
	refs[clicked] = oldRef;
	
	oldName = names[1]; names[1] = names[clicked];
	names[clicked] = oldName;
	
	changeImage('c1', doc_base + 'images/portretten/portret_' + names[1] + '.jpg'); changeImage('c' + clicked, doc_base + 'images/portretten/portret_' + names[clicked] + '.jpg');
	changeImage('k1', doc_base + 'images/kopK/kopK_' + names[1] + '.gif'); changeImage('k' + clicked, doc_base + 'images/kopK/kopK_' + names[clicked] + '.gif');

}


function changeImage(name, address)
{
	if (document.images)
		document.images[name].src=address;
}