Help with Formula Js

[sergiohacks3]

hello .. I need help in the following, I want to put a button in a field, I picked the style that loads it perfectly from the main.html, in the default value the html code (I'm using the text view editor), and I'm missing the javascript I charge it in the main.html, but it loads before the DOM ... how can I add javascript easily to the field ?? try the default value "javascript: ...." but it loads the same before the page .. ??

[sergiohacks3]

[sergiohacks3]

[sergiohacks3]

solved, add the javascript code in
/client/modules/crm/src/views/contact/detail.js


with the method afterRender: