Capturing the tab key using JavaScript in Firefox

Question

I use the following to restricts user to enter only some characters. When I press tab, the cursor does not point to next control (in Mozilla). But it works fine in IE.

Answer 1

Perhaps if you start with something like:

if (e.keyCode === 9) { // TAB
    return true;
}

Answer 2

I would recommend trying e.keyCode instead of e.which. Here is a SO link that describes a good method of getting the key strike into a single variable regardless: jQuery Event Keypress: Which key was pressed?