Stop urxvt scrolling

Say some program is continueously spitting output and your want to scroll back in the history and check something. By default, you can't. urxvt will jump down when something is added to the output. You can do one of these things:

• Press Ctrl-s. This will pause the program. When you're done, press Ctrl-q to continue.
• Add these lines to your .Xdefaults (or wherever you put your X resources):
  
  

  URxvt*scrollTtyOutput:      false                                                                                                                                                             
  URxvt*scrollWithBuffer:     true                                                                                                                                                              
  URxvt*scrollTtyKeypress:    true