Racket programming: How to update whats inside a frame after user clicks on a button. Lets say I run my program and the user clicks on a button inside a frame. I want it so that after the use clicks the button everything inside the frame dissapears and a new message along with new buttons appear inside the frame which say yes or no and if the user clicks on the yes button then it will take u back to the original contents of what was in the frame otherwise the program exits.