Good moorning

I have 3 pages external in php, it has forms 1. study, 2. phisical, 3. jobs. I use the Ajax Tabs Content Script (v 2.2) so I need to validate each form when the user press the button send buy I do not know how is possible to validate each form.

I need to validate when the user change the tabs and if the user press the button send the main page validate the information and pass at other tabs

Somebody can help me with this problem

excuse my english but i do no speak this languages.

Best Regards