1) don't use start_form_tag and end_form_tag -> they've been
deprecated. Use form_tag or form_for instead.
2) when/how do you want to reset the text field? Do you want to have a
button that the user can press to reset the text field? If so, you
3) what do you mean "retain the values"? Retain them where? Store them
to a database? Keep the values in the text fields if the user submits
a form with errors? Please elaborate.