\n"; for($i=0; $i<5; $i++) { print "

$i\n"; print "

\n"; for ($a=0; $a< 2; $a++) { print "
• $i-$a\n"; print "
  \n"; for ($c=0; $c<2; $c++) { print "
  • $i-$a-$c
  \n"; } print "
  \n"; print "
\n"; } print "

\n"; print "

\n"; } print "\n"; ?> this code generates something like this:

• 0
  • 0-0
    • 0-0-0
    • 0-0-1
  • 0-1
    • 0-1-0
    • 0-1-1
• 1
  • 1-0
    • 1-0-0
    • 1-0-1
  • 1-1
    • 1-1-0
    • 1-1-1
• 2
  • 2-0
    • 2-0-0
    • 2-0-1
  • 2-1
    • 2-1-0
    • 2-1-1
• 3
  • 3-0
    • 3-0-0
    • 3-0-1
  • 3-1
    • 3-1-0
    • 3-1-1
• 4
  • 4-0
    • 4-0-0
    • 4-0-1
  • 4-1
    • 4-1-0
    • 4-1-1

thats the javascript: document.observe('dom:loaded', function () { buttons = $$('.button'); buttons.each(function(button,intIdx) { button.observe('click', function() { button.descendants().each(function(el){el.toggle()}); }); }); });