Compared to the Desktop version, the JobRouter app contains a reduced JavaScript API.
The function jr_hide_subtable_column() is not available in the moment.
Fur further information, please see the JavaScript API manual. There you will find a list of all JavaScript functions available for the JobRouter app.
Generally it is possible to use native JavaScript.
Though the JavaScript code which refers to the Document object cannot be used.
Example:
document.getElementById("demo");
