<!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=gb2312" />
<title>menu</title>
<style>
.menu{
width:140px;
height:100px;
border-color:#33CCFF;
border-style:solid;
border-width:1px;
}
.functionCss{
float:left;
height:34px;
width:110px;
}
.menuImgCss{
float:left;
height:34px;
width:30px;
}
</style>
<script type="text/javascript">
function selectDiv(obj,div1,div2){
var d1 = document.getElementById(div1);
var d2 = document.getElementById(div2);
d1.style.backgroundColor="#FFFFFF";
d2.style.backgroundColor="#FFFFFF";
obj.style.backgroundColor="#B8DCFF";
}
function unSelectDiv(obj){
obj.style.backgroundColor="#FFFFFF";
}
function aa() {
document.getElementById("menu").style.display="block";
}
function bb() {
document.getElementById("menu").style.display="none";
}
</script>
</head>
<body>
<div onmouseover="aa()" onmouseout="bb()">
<div>click</div>
<div id="menu" class="menu" style="display:none">
<div id="menu1" style="background-color:#B8DCFF">
<div class="menuImgCss">
<img src="imgs/1.jpg" />
</div>
<div clas="functionCss" id="firstDiv" style="font-size:26px" onmouseover="selectDiv(this,'secondDiv','threeDiv')" onmouseout="unSelectDiv(this)">
click me
</div>
</div>
<div id="menu2" style="clear:both">
<div class="menuImgCss">
<img src="imgs/1.jpg"/> </div>
<div clas="functionCss" id="secondDiv" style="font-size:26px" onmouseover="selectDiv(this,'threeDiv','firstDiv')" onmouseout="unSelectDiv(this)">
click me
</div>
</div>
<div id="menu3" style="clear:both" >
<div class="menuImgCss">
<img src="imgs/1.jpg"/> </div>
<div clas="functionCss" id="threeDiv" style="font-size:26px" onmouseover="selectDiv(this,'secondDiv','firstDiv')" onmouseout="unSelectDiv(this)">
click me
</div>
</div>
</div>
</div>
</body>
</html>
原文地址：http://blog.csdn.net/laughing2me/article/details/34426115
