Shortening my code

programming flash
1

would anyone be willing to shorten my code then explain what they did?

b_portfolio.onRelease = function() {
    if (b_contact._y == 374) {
        untweenMenu();
    } else if (b_contact._y == 277) {
        tweenMenu();
        tweenMenu2();
        tweenMenu3();
        tweenMenu4();
        tweenMenu5();
        tweenMenu6();
    }
};
function tweenMenu() {
    easeType = mx.transitions.easing.Regular.easeOut;
    var begin = 269;
    var end = 374;
    var time = .5;
    var mc = b_contact;
    menuTween = new mx.transitions.Tween(mc, "_y", easeType, begin, end, time, true);
}
function untweenMenu() {
    easeType = mx.transitions.easing.Regular.easeOut;
    var begin = 374;
    var end = 277;
    var time = .5;
    var mc = b_contact;
    menuTween = new mx.transitions.Tween(mc, "_y", easeType, begin, end, time, true);
}
function tweenMenu2() {
    easeType = mx.transitions.easing.Bounce.easeOut;
    var begin = 257;
    var end = 277;
    var time = 1;
    var mc = b_logotype;
    menuTween = new mx.transitions.Tween(mc, "_y", easeType, begin, end, time, true);
}
function tweenMenu3() {
    easeType = mx.transitions.easing.Bounce.easeOut;
    var begin = 257;
    var end = 295;
    var time = 1;
    var mc = b_graphic;
    menuTween = new mx.transitions.Tween(mc, "_y", easeType, begin, end, time, true);
}
function tweenMenu4() {
    easeType = mx.transitions.easing.Bounce.easeOut;
    var begin = 257;
    var end = 313;
    var time = 1;
    var mc = b_web;
    menuTween = new mx.transitions.Tween(mc, "_y", easeType, begin, end, time, true);
}
function tweenMenu5() {
    easeType = mx.transitions.easing.Bounce.easeOut;
    var begin = 257;
    var end = 331;
    var time = 1;
    var mc = b_interactive;
    menuTween = new mx.transitions.Tween(mc, "_y", easeType, begin, end, time, true);
}
function tweenMenu6() {
    easeType = mx.transitions.easing.Bounce.easeOut;
    var begin = 257;
    var end = 349;
    var time = 1;
    var mc = b_print;
    menuTween = new mx.transitions.Tween(mc, "_y", easeType, begin, end, time, true);
}