code: public function setSoftLock ($sType, $id)
  	{
  		if (!isset ($this->softlocks[$sType]))
  		{
  			$this->softlocks[$sType] = array ();
  		}
  		
  		if (!isset ($this->softlocks[$sType][$id]))
  		{
  			$this->softlocks[$sType][$id] = true;
  			return true;
  		}
  		else
  		{
  			return false;
  		}
  	}
docs: /*
  Soft lock: doesn't use MySQL and works only during the script.
  It does allow multiple $id types