I have another idea - to use javascript to change hidden value
(<input type=hidden id="chkbox" value="0">)
When you check this box - javascript changes hidden value to 1 and submits form
(
function chkboxAndSubmit()
{
var box_name = document.GetElementById('box_name');
var chkbox = document.GetElementById('chkbox');
if (box_name.checked===true)
{
box_name.checked = false;
documen.chkbox.value = 0;
}
else
{
box_name.checked = true;
documen.chkbox.value = 1;
}
document.form_name.submit();
}
)
and then after submitting document you must create (if it uses only function -
variable must be global) variable with name $chkbox and check - if (chkbox==1)
//checked
else //unchecked
