Отмена в конструкторе

{"assets_hash":"a8b26fa7f6e768b07a72c8c9aadb9422","page_data":{"users":{"44ed81f43df95500777896a9":{"_id":"44ed81f43df95500777896a9","hid":16336,"name":"cashin","nick":"cashin","avatar_id":null,"css":""}},"settings":{"blogs_can_create":false,"blogs_mod_can_delete":false,"blogs_mod_can_hard_delete":false,"blogs_mod_can_add_infractions":false,"can_report_abuse":false,"can_vote":false,"can_see_ip":false,"blogs_edit_comments_max_time":30,"blogs_show_ignored":false,"blogs_reply_old_comment_threshold":30,"votes_add_max_time":168},"entry":{"_id":"536ea8bc997073007710f67f","hid":18809,"title":"Отмена в конструкторе","html":"<p>Делаю систему отмены-возврата при редактировании параметров моделей в <a href=\"http://aerodiagra.ru/constructor/\" class=\"link link-ext\" data-nd-link-orig=\"http://aerodiagra.ru/constructor/\" target=\"_blank\" rel=\"nofollow noopener\">конструкторе</a>.</p>\n","user":"44ed81f43df95500777896a9","ts":"2014-05-10T22:31:24.000Z","st":1,"cache":{"comment_count":0},"views":514,"bookmarks":0,"votes":0},"subscription":null},"locale":"en-US","user_id":"000000000000000000000000","user_hid":0,"user_name":"","user_nick":"","user_avatar":null,"is_member":false,"settings":{"can_access_acp":false,"can_use_dialogs":false,"hide_heavy_content":false},"unread_dialogs":false,"footer":{"rules":{"to":"common.rules"},"contacts":{"to":"rco-nodeca.contacts"}},"navbar":{"tracker":{"to":"users.tracker","autoselect":false,"priority":10},"forum":{"to":"forum.index"},"blogs":{"to":"blogs.index"},"clubs":{"to":"clubs.index"},"market":{"to":"market.index.buy"}},"recaptcha":{"public_key":"6LcyTs0dAAAAADW_1wxPfl0IHuXxBG7vMSSX26Z4"},"layout":"common.layout"}