struts query

we r using html frames.inside that frame we r using a <html:button> struts html-tag. On clicking this button the control has to go to one of the Action class there it has to fetch the datas from database and display in the same frame.The problem in our code is the control was not going to Action class itself. we r not able to get any idea which type of struts html-tag to use. please give some solutions.