Validating all the fields in form using js

Hi all,

I am bit confused with the form validation. here is my case. i have a form which have two select boxes initially. when i select any value in that it will dynamically generate few more text boxes and select boxes.

For example with the above procedure if i generate around 50 combination of text boxes and select boxes. how can i quickly validate all the fields whether it is empty or invalid entry.

can some one guide me how to validate this. i can able to validate static text boxes, what ever in the form. but dont know how to check dynamic values.

Can someone help in this please,

Thanks in advance,

magesh