It might be worth looking in to reducing your hours at work instead of quitting outright. If you're good, chances are they'll be willing to work with you to keep you around.
Along the same line of thought, a 6-month sabbatical would fit the bill as well. Again, from your employer's standpoint, losing a good developer (and having to roll the dice replacing him) is a disaster. The promise that you might come back when you're done could be enough for them to give you the green light.
Along the same line of thought, a 6-month sabbatical would fit the bill as well. Again, from your employer's standpoint, losing a good developer (and having to roll the dice replacing him) is a disaster. The promise that you might come back when you're done could be enough for them to give you the green light.
Good luck!