function popupFull(url) 
{
 params  = 'width='+screen.width;
 params += ', height='+screen.height;
 params += ', top=0, left=0'
 params += ', fullscreen=no';
 params += ', scrollbars=1, status=0, menubar=1, directories=0, toolbar=0, location=0, resizable=1';

 newwin=window.open(url,'Popop', params);
 if (window.focus) {newwin.focus()}
 return false;
}

function swapImage(afbeelding, src) {
    var hulp = document.getElementById(afbeelding);

    if (hulp) hulp.src = src;

    return true;
}