function tb(el, el2, e) {
  var rightClick = IsRightButtonClicked(e);
  if (el.className == 'blackcell') {
    el.className="circlecell";
    el2.value="circlecell";
  }
  else if (el.className == 'whitecell' && !rightClick) {
    el.className = 'blackcell';
    el2.value="blackcell";
  } else if (el.className == 'circlecell' && !rightClick) {
    el.className = 'whitecell';
    el2.value="whitecell";
  }
  else if (rightClick) {
    el.className="circlecell";
    el2.value="circlecell";
  }
  else {
    el.className="blackcell";
    el2.value="blackcell";
  }
  return false;
}



function IsRightButtonClicked(e) // e : mouse event
{
var rightclick = false;
e = e || window.event;
if (e.which)
rightclick = (e.which == 3);
else if (e.button)
rightclick = (e.button == 2);
return rightclick;
}

function resetGame(el) {
  c = confirm('Are you sure you want to reset the puzzle?');
  if (c) {
    el.value=1;
  }
  return c;
}

/***********************************************
* Disable select-text script- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/
function disableselect(e){
if (omitformtags.indexOf(e.target.tagName.toLowerCase())==-1)
return false
}

function reEnable(){
return true
}
/*************************************************
* End Disable select-text script- © Dynamic Drive (www.dynamicdrive.com)
**************************************************/