Changes

| lang ||en (English), ar (Arabic), bg (Bulgarian), ca (Catalan), hr (Croatian), cs (Czech), da (Danish), de (German), el (Greek), es (Spanish), et (Estonian), fi (Finnish), fr (French), he (Hebrew), hu (Hungarian), id (Indonesian - Bahasa Indonesia), is (Icelandic), it (Italian), ja (Japanese), ko (Korean), lt (Lithuanian), mn (Mongolian), my (Burmese), nl (Dutch), no (Norwegian), pl (Polish), pt (Portuguese), ro (Romanian), ru (Russian), sk (Slovak), sl (Slovenian), sr (Serbian), sv (Swedish), th (Thai), tr (Turkish), vi (Vietnamese), zh (Chinese simplified), zt (Chinese traditional) || Sets the default language to open the booking page. (2013 new style booking pages only)