The Mask Pluging does not work in my code

The Mask Pluging does not work in my code

Hello,
I have controls in my code : required : true, messages, control email, and Mask. Only Mask does not work, I don't know why, I am lost.
I precise that my function Mask works normally in once page, but I have two pages that are linked by the function AjaxRequest. And it is because that, the Mask doesn't work.
Please help me.
Thanks