[c.y.j]练习运动框架

<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>share</title>
<style>
#div1 {width:100px;height:200px;position:absolute;background:red;left:-100px}
#div1 span{width:40px;height:20px;top:70px;background:green;right:-40px;position:absolute}
</style>
<script>
window.onload=function(){
oDiv=document.getElementById("div1");
oDiv.onmouseover=function(){
startMove(0);
}
oDiv.onmouseout=function(){
startMove(-100);
}
}
var timer=null;
function startMove(target){
clearInterval(timer);
timer=setInterval(function(){
var speed=0;
if(oDiv.offsetLeft>target){
speed=-10;
}else{
speed=10;
}
if(oDiv.offsetLeft==target){
clearInterval(timer);
}else{
oDiv.style.left=oDiv.offsetLeft+speed+"px";
}

},30);
}
</script>
</head>


<body>
<div id="div1">
<span>share</span>
</div>
</body>
</html>