public String doProcessAction() {
		// Type Java code that runs when the component is clicked
	
		// TODO: Return outcome that corresponds to a navigation rule
		// return "customerDetails";
		// return "logout"; // global 
		String amountstring = (String)getRequestScope().get("amount");
		System.out.println("deposit/withdraw amount: " + amountstring);
		try {
			BigDecimal amount = new BigDecimal(amountstring);
			if (amount.scale() > 2) throw 
					new Exception("Only 2 digits allowed for cents");
			Account account = getAccount();
			BigDecimal balance = account.getBalance();
			if (amount.doubleValue() == 0) {
				throw new Exception("Amount is zero");
			} else if (amount.doubleValue() > 0) {
				balance = balance.add(amount);
			} else {
				if (balance.compareTo(amount.abs()) < 0) 
							throw new Exception("Withdraw amount too big");
				balance = balance.add(amount);
			}
			account.setBalance(balance);
			AccountManager accountManager = (AccountManager)getManagedBean("accountManager");
			accountManager.updateAccount(account);
			System.out.println("deposit/withdraw balance: " + balance);
			// create transaction
			TransactionManager transactionManager = (TransactionManager)getManagedBean("transactionManager");
			Transaction t = new Transaction();
			t.setId( (new com.ibm.ejs.util.Uuid()).toString() );
			t.setAmount(amount.abs());
			t.setTransTime( new Timestamp(System.currentTimeMillis()) );
			if (amount.doubleValue() > 0) t.setTransType("Credit");
			else t.setTransType("Debit");
			t.setAccount(account);
			transactionManager.createTransaction(t);
			transactionList = null;
			getTransactionList();
			getRequestScope().put("amount","");
		} catch (NumberFormatException e) {
			getFacesContext().addMessage("amount", new FacesMessage("Bad amount"));
		} catch (Exception e) {
			getFacesContext().addMessage("amount", new FacesMessage("Deposit/withdraw failed: " + e.getMessage()));
		}
		return "";
	}