<%@ tag language="java" import="java.util.*,java.text.*" %> <% // set some headers to force various browsers to not cache pages response.setHeader("Cache-Control", "no-cache"); response.setHeader("Pragma", "no-cache"); // set expired date to previous day, tricking some browsers into // thinking that thier cache is too old. GregorianCalendar cal = new GregorianCalendar(); cal.roll( Calendar.DAY_OF_MONTH, -1 ); java.util.Date yesterday = cal.getTime(); SimpleDateFormat formatter = new SimpleDateFormat(); formatter.applyPattern( "EEE, dd MMM yyyy HH:mm:ss z" ); String expiredDate = formatter.format(yesterday); response.setHeader("Expires", expiredDate ); %>