How to disable blocking of the right mouse button in Drupal?

Question

Drupal

Friends help disable blocking the right mouse button on the site. The site was made on Drupal in version 6-7, I don’t know for sure, but the site itself is zmvulkan.rf
I don’t rummage in Drupal at all and the logic is incomprehensible, I looked through all the modules, but I can’t understand what is blocking.
Maybe you can help with the code

Answer 1

http://zmvulkan.rf/sites/all/themes/vulkan/script.js
The very end of the file