[Seaside] Call does not work

[Sebastián Perez Escribano]

Hi list, I have a component with a simple form. The form have some radio 
buttons and the submit button. First sometimes after clicking over a 
radio and submiting  the form the variable is still in nil and second 
when I ask if the variable is nil and call other component, the 
component never shows. This is the code for the buttons

addRadioButton: each group: group into: html
     | javascript |
     javascript := self disableButtonScript.  "Disable submit button 
until some radio is clicked"
     html
         label:
             [(html radioButton)
                 group: group;
                 onClick: javascript;
                 selected: self selectedAnswer = each;
                 callback: [self selectedAnswer: each].
             html text: each].

and this is for the submit

acceptAction

     | answer |
     answer := self selectedAnswer.
     answer
         ifNil: [self errorHandler]
         ifNotNil:
             [self selectedAnswers add: answer.
             super acceptAction]

any ideas? the framework is 2.8 and run over VW 7.6.

Thanks!