get facebook page feed as json with jquery

You need to use the Facebook Graph API for this to happen.

https://developers.facebook.com/docs/reference/api/page/#feed

Your call should change to:

https://graph.facebook.com/237173582992285/feed?access_token=YOUR-TOKEN-GOES-HERE

You can try use this test page and try to familiarize with the graph api.

https://developers.facebook.com/tools/explorer/?method=GET&path=237173582992285%2Ffeed

EDIT:

You can also get the Wall from the page in several formats.

JSON https://www.facebook.com/feeds/page.php?format=json&id=237173582992285

ATOM https://www.facebook.com/feeds/page.php?format=atom10&id=237173582992285

RSS https://www.facebook.com/feeds/page.php?format=rss20&id=237173582992285