function extra(f) {
  f.action = "extra.php";
  window.open("about_:blank", "Options", "status, width=500, height=320");
  f.target = "Options";
  f.submit();
}

function submitIt(a) {
   a.action = "index2.php?section=plastics";
   a.target = "main";
   a.submit();
   self.close(); 
}

function colour(f) {
  f.action = "colour.php";
  window.open("about_:blank", "Colour", "status, width=400, height=150");
  f.target = "Colour";
  f.submit();
}

function submitIt1(a) {
   a.action = "index2.php?section=jigheads";
   a.target = "main";
   a.submit();
   self.close(); 
}