Play around with the following two buttons. Toggle the second button with the first one:

Toggle Other Button

Say Hello

Here is how the buttons are defined:

<BUTTON ID="b1" onclick="toggleOtherButton()">Toggle Other Button</BUTTON><BR><BR>
<BUTTON ID="b2" onclick="sayHello()" disabled>Say Hello</BUTTON><BR><BR><BR><BR>

function toggleOtherButton() {
  if (b2.disabled) {b2.disabled = false;}
  else b2.disabled = true;
}

<SCRIPT LANGUAGE="JavaScript">
<!--
function toggleOtherButton() {
  if (b2.disabled) {b2.disabled = false;}
  else b2.disabled = true;
}

function sayHello() {
  alert("Hello there");
}
// -->
</SCRIPT>

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