WYSIWYG editor, menus and pages do not load due JS error: shortcut and browser not defined

XEM configuration by sub-directories
reproducted on ie7 and FF
I clear my cache
I go directly to my sub-wiki: http://frfarwkff01.ema.priv.rhodia.com:8080/xwiki/wiki/bim_wiki/view/Main/
I log myself.
On the home page the sub-menus do not appear when I put the mouse on "edit", on "export", on "more actions" neither when I put the mouse on "bimwiki" or on "main".
Firebug tells me: "browser is not defined, shortcut is not defined, showsubmenu is not defined".
I click on "edit": the WYSIWYG editor doesn't load itself. Firebug "wysiwyg is not defined, browser is not defined"
I go back on the home page.
Under Spaces I click on the icon to see the index of the space xwiki: I get a "Loading... Page" and the page doesn't load herself. Firebug "shortcut is not defined, XWiki.widgets.LiveTable is not a constructor", etc.
It looks like these bug: http://jira.xwiki.org/jira/browse/CURRIKI-4125
I 've noticed that when I first log myself on the main wiki, and I then go on the subwiki, these problems do not appear and everything works nice.