I'm trying to check or uncheck a checkbox, using another checkbox.
So if I check "checkbox1", then "checkbox2" also gets checked.
If I uncheck "checkbox1", then "checkbox2" is also unchecked.
And vice versa, if "checkbox2" is checked or unchecked, then "checkbox1" is also checked or unchecked, respectively.
There is only one value for each of checkbox1 and checkbox2, which is "Yes".
I hope I made myself clear. It seems relatively easy, but I just can't get it. Any ideas?
Thanks in advance.