Submit forms with Ctrl+Enter

[gealt]

Title
Submit forms with Ctrl+Enter

Short, concise description of the idea
Users should have ability to post comments by pressing Ctrl+Enter instead of (Tab, Enter) or mouse clicking.

Full description of the idea
In all common Instant Messaging Clients and Social Networks there is an option to send message (or make post) by pressing Ctrl+Enter.
An ordered list of benefits

• This is a very convinient for anyone used to work with keyboard.

An ordered list of problems/issues involved

• Some users expect Ctrl+Enter to create newlines, but currently this shortcut means nothing in LJ.