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Web Development‎ > ‎JavaScript‎ > ‎

How can i (un)check a checkbox using Javascript?

This can be done in the following way: 

<html>
  <head>
    <script type="text/javaScript">
      <!--
        function inverseCheckbox() {
          var cbx = document.getElementById('myCheckbox');
          if (cbx.checked) {
            cbx.checked = false;
          } else {
            cbx.checked = true;  
          }
        }
      -->
    </script>
  </head>
  <body>
    <input id="myCheckbox" type="checkbox"/> This is a checkbox!
    <br/>
    <br/>
    <input type="button" onclick="inverseCheckbox();" value="Click Me!"/>
  </body>
</html>