I am using Contact Form 7 and have just the default fields, Name, Email, Subject and Message. When a user presses tab or uses the mouse to navigate everything works fine but if the user presses enter/return in any of the first 3 fields the form is submitted. I would therefore like to disable the Enter/Return key on these fields only. It must be in the easiest way possible that will not be overwritten by updates to Wordpress or Contact Form 7, if this is not possible please let me know.
I am using Wordpress 3.4.2 currently and 3.3.1 though I have later versions on my test site that have the same problem.
I am not looking for you to implement the changes - just supply full instructions on how to implement the change.