% String error = ""; String email = "your email"; String errorPre = "
"; String noEmail = "Please enter your email address and try again"; String invalidEmail = "Please enter a valid email address and try again"; String noListsSelected = "Please select at least one list and try again"; String errorSuf = "
"; if(request.getParameter("error") != null){ String errorCode = request.getParameter("error"); error = errorPre; if(errorCode.equals("noEmail")) error += noEmail; else if(errorCode.equals("invalidEmail")) error += invalidEmail; else if(errorCode.equals("noListsSelected")) error += noListsSelected; else error += "unknown error code: " + errorCode; error += errorSuf; } if(request.getParameter("email") != null){ email = request.getParameter("email"); } %>