Need to show/hide options in a select list based on the option selected in the Components field. Required for Jira 4.4.5

Harish19

We have a Jira project say "ABC". The project has many Components say ABC1, ABC2, ABC3.
Each Component has a Sub-Component say ABC1-1, ABC1-2, ABC2-1, ABC2-2, ABC2-3, ABC3-1.
The Components are tracked with the help of the system defined field - 'Components' .
To track the SubComponents we have created a custom field of type Multi Select list.
The requirement is to display only those options in the Sub Component field based on the value selected in the Component field.
Please let me know how can this be achieved using the Java script in the description of the SubComponent field.
How can hold the system define field - Components? Is this var Mod = document.getElementById('Components'); ok ??

Renjith Pillai

Rather than trying to mix with the builtin component field, directly use the Multi Level Select itself with the first level as Components name and the second level as sub-components.

Even with javascript involved, you will need the adminsitrator intervention to add options to the field. In that case you case you can directly use the Multi Level Select itself.