这段代码动画效果为什么实现不了

Question

function addLoadEvent(func) {      var oldonload = window.onload;      if (typeof window.onload != 'function') {         window.onload = func;         } else {        window.onload = function() {           oldonload();          func();    }  }}function positionMessage(){  if(!document.getElementById || !document.getElementById("message")) return false;  var elem = document.getElementById("message");  elem.style.position = "absolute";  elem.style.left = "50px";  elem.style.top = "100px";  movement = setTimeout("moveMessage()",10000);}function moveMessage(){  if(!document.getElementById || !document.getElementById("message")) return false;  var elem = document.getElementById("message");  elem.style.left = "200px";}addLoadEvent(positionMessage);addLoadEvent(moveMessage);

Answer 1

十秒执行一次？