jquery $('#'+item+'').checked code example
Example 1: jquery checkbox checked value
if ($('#check_id').is(":checked"))
{
// it is checked
}
Example 2: how to change checkbox state in jquery
$('[name="SelectedGroup"]').prop('checked', true);
if ($('#check_id').is(":checked"))
{
// it is checked
}
$('[name="SelectedGroup"]').prop('checked', true);