View source for How to set value for a hidden question by javascript

[[Category:Questionnaire]]

I have an "Age" question, with type number like this:

[[File:2018-11-19_16-17-00.png]]

Then I want to convert these number into some groups of age, such as:

*Under 40

*[40-49]

*[50-59]

*[60-69]

*70 and Over 

<b>How to do by javascript?</b>

- First, create a single question "D_AgeGroup" right after "Age" question, with such options:
[[File:2018-11-21_8-51-46.png]]


- Second,  create a page question type multiple questions per page:
[[File:2018-11-22_9-37-06.png]]


- And then add "Age", "D_AgeGroup" to that multi page:
[[File:2018-11-22_9-41-05.png]]


- After that, at "Age" question, go to CSS tab to hide "D_AgeGroup"
[[File:2018-11-22_9-44-00.png]]


- Finally, also at "Age" question go to Javascript tab,  write script for setting value of "D_AgeGroup" from "Age"
[[File:2018-11-22_9-47-49.png]]


You are done. 

Viewer only show question of Age. When inputing value on Age question, the approriate value will also set to D_AgeGroup:

[[File:2018-11-22_9-50-46.png]]