求大神帮忙看看
<script type="text/javascript">
window.onload=function(){
var odiv=document.getElementById('div1');
odiv.onmousemove=function(){startmove(10,0);}
odiv.onmouseout=function(){startmove(-10,-200);}
var timer=null;
function startmove(){
clearInterval(timer);
timer=setInterval(function(speed,iTarget){
if(odiv.offsetLeft==iTarget){clearInterval(timer)}
else{odiv.style.left=odiv.offsetLeft+speed+'px'}
},30)
}
}
</script>
