Ferris教程学习笔记:js示例2.15 提示框效果

 //解题思路
 这个示例相对复杂不少
 主要的原因是浏览器兼容性
 1:给每一个[超链接] a 添加鼠标的移入移出事件
   li上浮一层,图片显示
 2:给每一个图片添加鼠标移入移出事件
  li上浮一层,图片显示

 

<!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>提示框效果</title>
<style>
body,div,h2,ul,li{margin:0;padding:0;}
body{font:12px/1.5 Tahoma;}
ul{list-style-type:none;}
#outer{width:560px;border:1px solid #333;margin:10px auto;padding:0 0 10px 10px;}
#outer h2{line-height:30px;text-align:center;margin-top:10px;}
#outer ul:after{content:".";display:block;height:0;clear:both;visibility:hidden;}
#outer ul{zoom:1;}


#outer ul li{position:relative;float:left;border:1px solid #333;margin:10px 10px 0 0;display:inline;}
#outer ul li img{position:absolute;top:-14px;left:-14px;display:none;
border:2px solid #999;cursor:crosshair;}

#outer ul li a{color:#666;width:80px;height:80px;display:block;background:#f0f0f0;
text-decoration:none;padding:10px;}
#outer ul li a strong{display:block;}
.zindex{z-index:1;}
</style>
<script>
window.onload = function ()
{
    var oLi = document.getElementsByTagName("li");
    var oA = document.getElementsByTagName("a");
    var oImg = document.getElementsByTagName("img");



    for (var i = 0; i < oLi.length; i++)
    {
        oA[i].index = oImg[i].index = i;
        oA[i].onmouseover = function() {
            oLi[this.index].className = "zindex";
            oImg[this.index].style.display = "block"
        };
        oA[i].onmouseout = function ()
        {
            oLi[this.index].className = "";
            oImg[this.index].style.display = "none"
        };
        oImg[i].onmouseover = function()
        {
            oLi[this.index].className = "zindex";
            this.style.display = "block"    
        };
        oImg[i].onmouseout = function()
        {
            oLi[this.index].className = "";
            this.style.display = "none"    
        }        
    }    
}
</script>
</head><body>
<div id="outer">
    <h2>名车车标展示-鼠标移过显示车标</h2>
    <ul>
        <li class="">
            <a href="javascript:;" title="BMW 宝马汽车"><strong>BMW</strong>宝马汽车</a>
            <img style="display: none;" src="10_files/1.jpg" alt="BMW 宝马汽车">
        </li>
        <li class="">
            <a href="javascript:;" title="Alfa Romeo 阿尔法-罗米欧"><strong>Alfa Romeo</strong> 阿尔法-罗米欧</a>
            <img style="display: none;" src="10_files/2.jpg" alt="Alfa Romeo 阿尔法-罗米欧">
        </li>
        <li>
            <a href="javascript:;" title="Skoda 斯柯达"><strong>Skoda</strong> 斯柯达</a>
            <img src="10_files/3.jpg" alt="Skoda 斯柯达">
        </li>
        <li>
            <a href="javascript:;" title="Volkswagen 大众汽车"><strong>Volkswagen</strong> 大众汽车</a>
            <img src="10_files/4.jpg" alt="Volkswagen 大众汽车">
        </li>
        <li>
            <a href="javascript:;" title="Saab 萨布牌轿"><strong>Saab</strong> 萨布牌轿车</a>
            <img src="10_files/5.jpg" alt="Saab 萨布牌轿">
        </li>
        <li class="">
            <a href="javascript:;" title="Lamborghini 兰博基尼"><strong>Lamborghini</strong> 兰博基尼</a>
            <img style="display: none;" src="10_files/6.jpg" alt="Lamborghini 兰博基尼">
        </li>
        <li class="">
            <a href="javascript:;" title="Porsche 保时捷"><strong>Porsche</strong> 保时捷</a>
            <img style="display: none;" src="10_files/7.jpg" alt="Porsche 保时捷">
        </li>
        <li>
            <a href="javascript:;" title="Peugeot 标致"><strong>Peugeot</strong> 标致</a>
            <img src="10_files/8.jpg" alt="Peugeot 标致">
        </li>
        <li>
            <a href="javascript:;" title="Mercedes1 梅赛德斯 奔驰"><strong>Mercedes1</strong> 梅赛德斯 奔驰</a>
            <img src="10_files/9.jpg" alt="Mercedes1 梅赛德斯 奔驰">
        </li>
        <li>
            <a href="javascript:;" title="Buick 别克汽车"><strong>Buick</strong> 别克汽车</a>
            <img src="10_files/10.jpg" alt="Buick 别克汽车">
        </li>
    </ul>
</div>
</body></html>

 

posted @ 2013-12-12 15:15  kaka100  阅读(296)  评论(0编辑  收藏  举报