Replacing charset in input field ???

Hi!

I want to ask a question.

Is there any way of replacing charset in input filed on your search form without changing the charset on the whole asp page.

For example. If you are using charset=iso-8859-1, and you want to perform search by form on the same page in charset=utf-8. How to make script to read the charset characters in input filed (characters that you have typed in your search filed) in charset=utf-8, but at the same time preserve the charset=iso-8859-1 for your whole asp page (which is also the result page for your search).