function initDoctorAssigningForms() {
    var i;
    var table = document.getElementById('forumStructureTable');
    var inputs = table.getElementsByTagName('input');
    var selects = table.getElementsByTagName('select');

    for(i = 0; i < selects.length; i++) {
        selects.item(i).onchange = function() {
            this.form.submit();
        };
    }

    for(i = 0; i < inputs.length; i++) {
        if(has_class(inputs.item(i), 'doctorAssignButton')) {
            inputs.item(i).parentNode.removeChild(inputs.item(i));
            i--;
        }
    }
}

pridaj_onload_handler(initDoctorAssigningForms);