Pandora website sleep timer

pandoraSleepTimer.js

// This is a sleep timer for Pandora. To work this, just copy this entire file to notepad,
// edit the number at the bottom where it says, "Sleep time in minutes," putting
// how many minutes you'd like, then copy all of that, go to Pandora, 
// press F12, then in the box near the bottom of the window that shows up, paste the code and 
// press enter.

// This is useful if you need a sleep timer for Pandora.
// If this stops working, or if you'd like a sleep timer on a different site,
// try to find something like a pause or mute button, then right-click it,
// select "inspect" (in Chrome -- not sure what it says in other browsers)
// and then it should give you some HTML that corresponds to the tag. 
// Right-click the HTML tag, click "Copy," then select "Copy-selector," and paste that
// between the two quotes in the call to "querySelector" (replacing what's there currently).

(function(minutes){
  setTimeout(
  function(){
    document.querySelector(".Tuner__Audio__Control__Play > span > button").click()
  },
  minutes*60*1000);
})
////////////////////////////////////////////
           (5) // Sleep time in minutes
///////////////////////////////////////////