Hiding Check Box in JavaScript

To hide check boxes that has been checked in JavaScript do the following:
1.Right click on the HTML file that you want to edit and then select the option "Open With." and select the HTML or JavaScript editor that you have
2. In the HTML code type the following:
<script type="Text"> </script>
Put all your JavaScript code within the tags
3.To create a function to hide the check box add the following code:
function hideChckBox(chkbox) {
if(chkbox.checked) {
chkbox.style.visibility = "hidden";
}
}
4.add the following code to call the function you just created:
OnClick="javascript: hideChkBox(this)"

Obrigado!!