pass current text box in parameter

[XavierRouxRacine1]

Hello, I try to dynamically set the text box with a multiple selected, but I want to keep the current value. Like I use a calculate, I always loose my text added to the text box. 

Can we pass in the javascript function the current value of the text box. Here a look at my row in excel. 

text

comments_free

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pulldata("@javascript", "functions.js", "myfunction", ${cat_comm_choice},  pulldata("@property", 'language'), ${comment_free} )

For now, the value I got is undefined for my argument 'comments_free'. 

Thank you