document.onkeydown = showDown;
document.onkeyup = showUp;
var shft = 0;

function showDown(evt) {
    evt = (evt) ? evt : ((event) ? event : null);
    if (evt) {
        if(evt.keyCode == 17) {
            shft = 1;
        }
        if(evt.keyCode == 77 && shft == 1) {
            shft=0;
            startepong();
        }
    }
}

function showUp(evt) {
    if(evt) {
        if(evt.keyCode == 17) {
            shft = 0;
        }
    }
}

function startepong() {
    var movie = findeFlash('nav');
    if (movie) {
        movie.LoadMovie(0, "flash/videowall/mtvpong.swf");
        movie.SetVariable("pongstart", "1");
        movie.focus();
    }
}