bug firefox checkboxes

[cmitsis]

i have a problem with firefox...
i have a form with some checkboxes and a checkbox "all" that when i click on it all the checkboxes(box1,box2) must be clicked at the same time.

i created this function:

function clickbox(checkbox)
{
if(checkbox.checked==true)
{
document.getElementById('box1').checked=true;
document.getElementById('box2').checked=true;
}
else
{
document.getElementById('box1').checked=false;
document.getElementById('box2').checked=false;
}
}

and then i have:

<input name="all" type="checkbox" onclick="javascript:clickbox(this);">

this works fine at IE but not in firefox.

any solution???

[dflynn]

Post in HTML or Javascript. This is Bug as in DEVPPL Forum bugs. Not your bugs.

[rangana]

I believe webmaster will move this thread later. Meanwhile, show us your complete code, I can't see in your markups that you have box1 and box2 id being declared.

Also note that IE being buggy regards name and id synonymous, so most probably the problem is in you and not on FF. Ensure you have box1 and box2 id. With that said, the code should work.

If nothing works, up the rest of the markup so we could have a closer look.