if (top == self){
var fs =
'<frameset rows="*,555,*" framespacing="0" border="0" frameborder="0">'+
'<frame name="boven" scrolling="no" noresize target="midden"  src="/program/images/top.html" marginheight="9">'+
'<frame name="midden" scrolling="no" noresize target="midden" src="" marginheight="9">'+
'<frame name="onder" scrolling="no" noresize target="midden" src="/program/images/bottom.html" marginheight="9">'+
'</frameset>';
document.write(fs);
frames['midden'].location.href = self.location.href;
}