if (self!=parent.pagina)
{
   document.write("<FRAMESET cols=\"79%,21%\" FRAMESPACING=0 BORDER=0 FRAMEBORDER=0>");
   document.write("<FRAME SRC=\"schakel.htm\" NAME=\"pagina\" scrolling=\"auto\" noresize>");
   document.write("<FRAME SRC=\"indexoke.htm\" NAME=\"index\" scrolling=\"auto\" noresize>");
   document.write("<NOFRAMES>");
   document.write("Let op! Uw browser ondersteunt geen frames.<P>");
   document.write("</NOFRAMES>");
   document.write("</FRAMESET>");
   document.write("</HTML>");
}