DIV学写带动画的CSS+JS下拉导航条

admin · 发表于 2009-10-9 02:27:39

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<html>
<head>
<title>DIV下拉菜单导航条</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
<style type="text/css">
body{font-size:9pt;}
.menubar{position:absolute;top:10px;width:100px;height:20px;cursor:default;border-width:1px;border-style:outset;color:#99FFFF;background:#669900}
.menu{position:absolute;top:32px;width:140px;display:none;border-width:2px;border-style:outset;border-color:white sliver sliver white;background:#333399;padding:15px}
.menu A{text-decoration:none;color:#99FFFF;}
.menu A:hover{color: #FFFFFF;}
</style>
<script language="javascript">
function divControl(show){//判断是否显示相对应的下拉列表
window.event.cancelBubble=true;
var objID=event.srcElement.id;
var index=objID.indexOf("_");
var mainID=objID.substring(0,index);
var numID=objID.substring(index+1);
if(mainID=="Tdiv"){
if(show==1){eval("showdiv("+"Div"+numID+")");}
else{eval("hidediv("+"Div"+numID+")");}
}
}
var nbottom=0,speed=2;
function displayMenu(obj){//在显示下拉菜单时,以下拉方式显示下拉菜单
obj.style.clip="rect(0 100% "+nbottom+"% 0)";
nbottom+=speed;
if(nbottom<=100){
timerID=setTimeout("displayMenu("+obj.id+"),1");
}
else clearTimeout(timerID);
}
function showdiv(obj){//显示下拉列表
obj.style.display="block";
obj.style.clip="rect(0 0 0 0)";
nbottom=5;
displayMenu(obj);
}
function hidediv(obj){//隐藏下拉列表
nbottom=0;
obj.style.display="none";
}
function keepstyle(obj){//在下拉菜单中移动时,保持下拉列表的样式
obj.style.display="block";
}
</script>
<table width="400" border="0" align="center" cellpadding="0" cellspacing="0" style="font-size:15px">
<tr>
<td width="20%">
<div align="center"id="Tdiv_1" class="menubar" onmouseover="divControl(1)" onmouseout="divControl(0)">
源码爱好者
</div>
</td>
<td width="20%">
<div align="center"id="Tdiv_2" class="menubar" onmouseover="divControl(1)" onmouseout="divControl(0)">
源码下载
</div>
</td>
<td width="20%">
<div align="center"id="Tdiv_3" class="menubar" onmouseover="divControl(1)" onmouseout="divControl(0)">
Ajax实例
</div>
</td>
<td width="20%">
<div align="center"id="Tdiv_4" class="menubar" onmouseover="divControl(1)" onmouseout="divControl(0)">
特效代码
</div>
</td>
</tr>
</tr>
<tr>
<td width="20%">
<div align="left"id="Div1" class="menu" onmouseover="keepstyle(this)" onmouseout="hidediv(this)">
<a href="#">最新更新</a><br>
<a href="#">下载排行</a><br>
<a href="#">资源导航</a>
</div>
</td>
<td width="20%">
<div align="left"id="Div2" class="menu" onmouseover="keepstyle(this)" onmouseout="hidediv(this)">
<a href="#">VB</a><br>
<a href="#">JScript</a><br>
<a href="#">Java</a></div>
</td>
<td width="20%">
<div align="left"id="Div3" class="menu" onmouseover="keepstyle(this)" onmouseout="hidediv(this)">
<a href="#">Delphi</a><br>
<a href="#">jQuery</a><br>
<a href="#">Mootools</a></div>
</td>
<td width="20%">
<div align="left"id="Div4" class="menu" onmouseover="keepstyle(this)" onmouseout="hidediv(this)">
<a href="#">CSS菜单</a><br>
<a href="#">CSS布局</a><br>
</td>
</table>
</body>
</html>

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