var pace = 45;
var step;
var pause = 1;
var vozr = 1;

function getmenuname() {
step = pace;
vozr = -vozr;

movemenu();
}

function movemenu() {
if (step>=0) {
var elem = document.getElementById('picture');
elem.style.marginTop = elem.offsetTop + step*vozr + 'px';
step--;
var movetimer=setTimeout("movemenu()",pause)
}
else clearTimeout(movetimer);
}