Disable button onclick but enable another button

Question

I have two different buttons on my page. I want them both to be enabled when the page loads, but when a user clicks one I would like to disable the other button. But if they click the other button, I would like that button to disabled as well while enabling the other disabled button. I have been able to disable the button onclick, but I'm having trouble getting the other button to re-enable . Here are the two buttons that I have on the page. They are not in a form, just on the page.

<button onclick="down7913.disabled=false" type="submit" class="positive" name="up7913"><img src="check.png" alt=""/></button>

<button onclick="this.disabled=true" type="submit" class="negative" name="down7913"><img src="cross.png" alt=""/></button>

Answer 1

Check this code, it's in your flavour and working:

Code Snippet -

<button
    onclick="this.disabled=true;document.getElementById('down7913').disabled=false;"
    type="submit"
    class="positive"
    name="up7913"
    id="up7913"
  >
    First
  </button>

  <button
    onclick="this.disabled=true;document.getElementById('up7913').disabled=false;"
    type="submit"
    class="negative"
    name="down7913"
    id="down7913"
  >
    Second
  </button>