code: function onLoad() {
      if (!buttonStartStuff)       buttonStartStuff       = document.getElementById("button-start-stuff")
      if (!buttonClearOutput)      buttonClearOutput      = document.getElementById("button-clear-output")
      if (!outputElement)          outputElement          = document.getElementById("output")
  
      buttonStartStuff.addEventListener("click", function() {
          lastClickTime = new Date().toString()
          if (db) db.transaction(addClick)
  
          openTheOtherDatabase()
  
          if (!started) {
              buttonStartStuff.value = "stop stuff"
              startStuff()
          }
          else {
              buttonStartStuff.value = "start stuff"
              stopStuff()
          }
          started = !started
      })
  
      buttonClearOutput.addEventListener("click", function() {
          outputElement.innerHTML = ""
      })
  
      openTheDatabase()
  }
docs: ------------------------------------------------------------------------------