function popup(idbericht,idafzender) {
//voor popup ikoontje dynamisch veranderen in gelezen
envelop = "envelop"+idbericht;
document.images[envelop].src="elements/gelezen.gif";
window.open('toonprivebericht.htm?bericht='+idbericht+'&afzender='+idafzender, 'bericht'+idbericht, 'toolbar=no,scrollbars=yes,resizable=no,status=no,width=510,height=420,top=8,left=8,menubar=no,directories=no');
}

function schrijfberichtpopup(idafzender) {
window.open('priveberichtsturen.htm?idafzender='+idafzender, 'venster'+idafzender, 'toolbar=no,scrollbars=yes,resizable=no,status=no,width=510,height=420,top=8,left=8,menubar=no,directories=no');
}

function leesberichtpopup(idafzender,idbericht) {
window.open('toonprivebericht.htm?bericht='+idbericht+'&afzender='+idafzender, 'venster'+idafzender, 'toolbar=no,scrollbars=yes,resizable=no,status=no,width=510,height=420,top=8,left=8,menubar=no,directories=no');
}

function vertelvriendpopup(id,id2) {
url = 'vertelvriend.htm?id='+id+'&id2='+id2;
window.open(url, 'venster'+id+id2, 'toolbar=no,scrollbars=yes,resizable=no,status=no,width=510,height=220,top=8,left=8,menubar=no,directories=no');
}