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<style>
#div1{100px; height:150px; background:#0F0; position:absolute; left:-100px;}
#div1 span{position:absolute; 20px; height:60px; line-height:20px; background:#00F; right:-20px; top:50px;}
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window.onload=function(){
var oDiv=document.getElementById('div1');
oDiv.onmouseover=function(){
startMove(10,0);
}
oDiv.onmouseout =function(){
startMove(-10,-100);
}
}
var timer=null;
function startMove(speed,locall){
var oDiv=document.getElementById('div1');
clearInterval(timer);
timer=setInterval(function(){
if(oDiv.offsetLeft==locall){
clearInterval(timer);
}
else{
oDiv.style.left=oDiv.offsetLeft+speed+'px';
}
},30);
}
</script>
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