inozem,
Поиск элементов в DOM
События клавиатуры
JS-Анимация
или вариант ниже ...
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Движениe</title>
</head>
<body>
<script type="text/javascript">
var x=150,y=180,step=5;
document.body.onkeydown = document.body.onkeypress = function (a) {
a = a ? a : window.event;
39 == (a.charCode || a.keyCode) && (x += step);
a = document.getElementById("Kamatoznik");
a.style.top = y + "px";
a.style.left = x + "px"
};
</script>
<div id="Kamatoznik" style="position:absolute">
<img src="http://javascript.ru/forum/images/smilies/dance3.gif" name="front" alt="Kamatoznik">
</div>
</body>
</html>