Budget app problems
<p>I want to create an app that where the main page will display the current balance and allow you to go to 1 of two pages. 
The second page will allow you to enter deposits.
The third page will allow you to make withdrawals.</p>

<p>I'm having a problem with the code, when I click the buttons on the main page, the page opened is blank. What am I doing wrong possibly that the page isn't showing?</p>

<p>Also, how can I carry the data from deposit or withdrawal pages over the main page to show the current balance?</p>
