when i use that im getting in firefug console this error:

$("body").on is not a function . I search for this and i notice that i have to make a jquery update ,then i downloaded the last yii version and replace the framework directory but the error continues.

Well ‘on’ has been introduced in jQuery 1.7. If you have already created your project before upgrading, you should clean your assets folder. I believe you can even delete all subfolders there, and next time you launch your webapp, Yii will recreate what is needed, include new jQuery version.

There should be a wiki somewhere, but I believe it’s all there is.

thank you very much ,solved