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.hidden { visibility: hidden; }
.unhidden { visibility: visible; }

  <!--

  ////////////////////////////////////////////
  // CHANGE THE SECONDS DELAY BELOW TO //
  // THE NUMBER OF SECONDS YOU WANT BEFORE //
  // THE LINKS APPEAR //
  ////////////////////////////////////////////


  $secondsdelay = 10;

  ////////////////////////////////////////////
  // DO NOT EDIT THIS SECTION //
  ////////////////////////////////////////////


  function unhide(divID) {
  var item = document.getElementById(divID);
  if (item) {
  item.className=(item.className=='hidden')?'unhidde n':'hidden';
  }
  }


  $delay = $secondsdelay*1000;

  window.setTimeout("unhide('links')",$delay);

  //-->

 <div id="links" class="hidden">
BUTTON
</div>