Korean Job Discussion Forums

[hanguk]

What are the procedures if someone needs to change their E7 visa to something else (such as D10) if he leaves his job before the contract expires with the current employers? Mostly I am interested to know where can I find detailed information (such as what kind of papers should be obtained, what documents are required, etc.) about the rules and regulations related to such things? An English version would be greatly helpful, however, a Korean version is fine as well, as long as it contains all the details