JavaScript实现鼠标悬停伸展收缩效果菜单

<html>
<head>
<title>真正的JavaScript伸展收缩型菜单</title>
<style type="text/css">
#con div{width:100px;margin:5px 0 5px 0;font-size:9pt;height:23px;color:white;}
</style>
<div id="con">
<div style="background-color:red">红色菜单</div>
<div style="background-color:green">绿色菜单 </div>
<div style="background-color:blue">蓝色</div>
<div style="background-color:yellow">黄色</div>
<div style="background-color:pink">这是什么色</div>
<div style="background-color:orange">桔色</div>
<div style="background-color:black">黑色超酷</div>
</div>
<script language="javascript">
function $(e){return document.getElementById(e);}
function roulMenu(e,maxW,minW){
 var divs = $(e).getElementsByTagName('div');
 for(var i=0;i<divs.length;i++){
 (function(){
 var tims,timss;
 divs[i].onmouseover=function(){
  var self = this;
  clearInterval(timss);
  tims=setInterval(function(){
   if(self.offsetWidth<maxW){
   self.style.width = self.offsetWidth + 5 + 'px';
   }else{
   clearInterval(tims);
   }
  },10);
  }
  divs[i].onmouseout=function(){
  var self = this;
  clearInterval(tims);
  timss=setInterval(function(){
   if(self.offsetWidth>minW){
   self.style.width = self.offsetWidth - 5 + 'px';
   }else{
   clearInterval(timss);
   }
  },10);
  }
 })();
 }
}
//使用方法
roulMenu('con',200,100);
</script>