grails - Controller variable isn't usable in double render GSP -

i need use list of fxrate.

the index gsp load automatically _form gsp , when user send params return final _table gsp

something like:

(index (_form (_table _/table) _/form) /index)

but controller variable fxrate works in te gsp index , _form. not in table.

someone can me this? sorry if not explain right.