function setToSpecial()
{
  document.getElementById("promo1").innerHTML = "<a href='../gold_html/goldsols.htm'><b>Special Sale!</b></a>";
  setTimeout ( "setToGold()", 2000 );
}

function setToGold()
{
  document.getElementById("promo1").innerHTML = "<a href='../gold_html/goldsols.htm'><b>Au/Ag Colloids!</b></a>";
  setTimeout ( "setToSpecial()", 2000 );
}