If i using the official jquery lib the validator (bassistance.de/query-plugins/jquery-plugin-validation) have an annoying bug, if i hit the submit an empty (required) field the validator will display errors, but if i fill the input box the script doesnt validate it again (onkeypress or onblur should oblige to re-validate), only if i click submit again.
Hours later i realized if i using the lib at bassistance the bug dissappear.
Checkboxes and lists works well with both version of the lib.
Here you can check the form with the original lib.
(Hit submit, and write something to username field)
Here is the working example.
This isn’t “official” in the sense that it’s part of jQuery. It’s a 3rd party plugin.
And there’s no mystery here: In the working version, you’re using jQuery 1.3.2, which is rather old. In the working version you’re using jQuery 1.6. Presumably the plugin was written against this older version of jQuery. When you use a newer version of jQuery, the plugin isn’t working correctly.
There is nothing “wrong” with the newer jQuery library, there is likely a bug in the 3rd party library which was written against an earlier version.