if (top == self){
var fs =
'<frameset cols="*,820,*" frameborder="NO" border="0" framespacing="0">'+
'  <frame src="http://www.vandenberg-art.com/frame_links.html" name="leftFrame" scrolling="NO" noresize>'+
'	<frameset rows="*,460,*" frameborder="NO" border="0" framespacing="0">'+
'		<frame src="http://www.vandenberg-art.com/frame_links.html" name="topFrame" scrolling="NO" noresize>'+
'		<frame src="http://www.vandenberg-art.com/pages/frame_midden.php" name="mainFrame" noresize>'+
'		<frame src="http://www.vandenberg-art.com/frame_links.html" name="bottomFrame" scrolling="NO" noresize>'+
'	</frameset>'+
'  <frame src="http://www.vandenberg-art.com/frame_rechts.html" name="rightFrame" scrolling="NO" noresize>'+
'</frameset>';

document.write(fs);
frames['mainFrame'].location.href = self.location.href;
}