Question

I have a group of check boxes with same name, what I need is when I click any one of them, other checkboxes must get disabled. how should I apply Javascript over it?

<input type="checkbox" name="finallevelusers[]" value="1"/>
<input type="checkbox" name="finallevelusers[]" value="1"/>
<input type="checkbox" name="finallevelusers[]" value="1"/>
<input type="checkbox" name="finallevelusers[]" value="1"/>

Please help…

Answer 1

<script type="text/javascript">
for (i=0; i<document.test.finallevelusers.length; i++){
if (document.test.finallevelusers[i].checked !=true)
  document.test.finallevelusers[i].disabled='true';
}
</script>

probably you want them enabled again when user uncheck the checkbox

for (i=0; i<document.test.finallevelusers.length; i++){
    if (document.test.finallevelusers[i].disabled ==true)
      document.test.finallevelusers[i].disabled='false';
    }