var venster
function toonnoot(a,x)
{
venster= window.open(a ,'naam' ,'width=500,height=200,scrollbars=yes') ;
venster.document.close();
var tijd=4000*x;
window.setTimeout("venster.close()", tijd);
}
function toonfoto(a)
{
venster= window.open('' ,'naam' ,'width=860,height=720,scrollbars=yes') ;
venster.document.write(' foto');
venster.document.write(' ');
venster.document.write(';
venster.document.write(a);
venster.document.write('.jpg)
');
venster.document.write(' ');
venster.document.close();
}