[code]
<!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>无标题 1</title>
<script>
var flag=0;
function f_s(id){
var obj=document.getElementById(id);
obj.style.display="block";
obj.style.height="1px";
var changeW=function(){
var obj_h=parseInt(obj.style.height);
if(obj_h<=335){
obj.style.height=(obj_h+Math.ceil((335-obj_h)/10))+"px";
}
else{
clearInterval(bw1);
}
}
bw1= setInterval(changeW,1);
if(flag>0){
clearInterval(bw2);
}
}
function closeW(id){
flag++;
var obj=document.getElementById(id);
var closeDiv=function(){
clearInterval(bw1);
var obj_h=parseInt(obj.style.height);
if(obj_h>1){
obj.style.height=(obj_h-Math.ceil(obj_h)/10)+"px";
}
else{
clearInterval(bw2);
obj.style.display="none";
}
}
bw2= setInterval(closeDiv,1);
//alert(flag)
}
function showDiv(){
var ele = document.getElementById("div1");
clearInterval(bw1);
clearInterval(bw2);
ele.style.display = "block";
ele.style.height = 335 + "px";
}
</script>
</head>
<body>
<div onmouseover="f_s('div1')" onmouseout="closeW('div1')" style=" position:absolute;background:black; left: 579px; top: 34px; width: 149px; height: 35px;">
</div>
<div id="div1" style="position:absolute;background:aqua;left:451px;overflow:hidden;top:70px;width:349px;display:none" onmouseover="showDiv()" onmouseout="closeW('div1')"></div>
</body>
</html>
[/code]