// Javascript from Moodle modules
function cardinalityChange(me){
        switch(parseInt(me.value,10)){
                case 1: //Full Duplex
                        me.form.can_participate.checked = false;
                        me.form.can_participate.disabled = true;
                        break;
                case 2: //Broadcast
                        me.form.can_participate.disabled = false;
                        break;
        }
}