ajaxUpdateAreas not working

When using multiple on-event-update-area for a form submit, it yields in an ajaxSubmitFormUpdateAreas and that does not work currently.

Without being a javascript expert, i can propose a patch to fix this issue.

I think it is a problem of variable visibility scope inside the loop. Setting the jQueyr.ajax async option to false resolved the issue.
In the following patch, i used a name-spacing technique to ensure the parameters visibility inside callback function.