This should be simple but for some reason I can't find a solution.
I have some custom options that are listed on a drop down
I'd like to call a javascript function when the user changes the option. This is the select tag that I'm looking for
I looked into ...catalog/product/view/options/type/select.phtm,...catalog/product/view/options/view/options.phtm, and into some additional files but it's nowhere to be found. Any idea about where should I find it?