[jQuery] jQuery License

If I want to use jQuery with a MIT lisence, where should I put the text of lisence? Can I just create a file "mit-license.txt" in the folder with jQuery and other plugins (under the MIT license)... If I change something in the source code, what should I do? Could I use jQuery in proprietary prog

[jQuery] jQuery Form Plugin

Firs of all, perfect work. But I have problems with file uploads in opera 10. I found the reason. It is here: if (--domCheckCount) { // in some browsers (Opera) the iframe DOM is not always traversable when // the onload callback fires, so we loop a bit to accommodate cbInvoked = 0;