document.getElementById("comment").onkeydown = function (moz_ev)
        {
                var ev = null;
                if (window.event){
                        ev = window.event;
                }else{
                        ev = moz_ev;
                }
                if (ev != null && ev.ctrlKey && ev.keyCode == 13)
                {
                        document.getElementById("submit").click();
                }
        }