An issue where the onclick in the JSP refreshes the page one time

Today to make a registration page, made a clear button, I execute the empty button, but the method called by the button did not write anything, all the text is empty

The code is as follows:

<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "pageencoding=" UTF-8 "%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >
Check the information, because in <form action= "Zhuche" method= "POST" > Execute onclick, so each page will be refreshed once.
There are two ways to do this without refreshing the page
1, do not <form action> format, delete this format
2. Change to onclick= "return ResetClick ()", where ResetClick () is the OnClick method and return = False in the method, so there is no need to refresh the page.
<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "pageencoding=" UTF-8 "%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >