code: function doJump(){
      if(!jumpBoxShown) return;
  
      // Figure out which line we need to jump to
      var line = document.getElementById('jumpbox').value;
  
      // Grab the line anchor if it exists
      var theLine = document.getElementById('line-' + line);
  
      // If it doesn't exist, there's not much we can do
      if(!theLine) return;
  
      // If it does exist, jump to it
      window.location.hash = 'line-' + line;
    }
docs: ## doJump
  
  Performs the line jump by manipulating the location hash