Override browsers CTRL+(WHEEL)SCROLL with javascript

Question

In most browsers on linux, CTRL+(WHEEL)SCROLL allows the user to zoom in and out of the page by enlarging or shrinking the size of all elements. Now I want to ove

Answer 1

https://developer.mozilla.org/en/Code_snippets/Miscellaneous#Detecting_mouse_wheel_events describes how to add a handler for mousewheel events in Firefox — including, theoretically, Ctrl+mousewheel events — but it mentions that if the user's preferences are such that a given modifier+mousewheel combination changes the text size, then these event-listeners will not be called. So, it doesn't seem to be possible (though I haven't tested myself to confirm the accuracy of that page).

Other browsers may behave differently, of course. If you're O.K. with it not working in Firefox, you can try registering your handler by setting window.onmousewheel.