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JavaScript实现样式表的简单切换

2016-03-13 17:36 274 查看

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<style type="text/css">
#ulList
{
height:18px;
width:120px;
padding-left:380px;
padding-top:66px;
}
#ulList li
{
list-style-type:none;
display:inline-block;
height:18px;
width:30px;
text-align:center;
}
#div1
{
width:500px;
height:100px;
border:1px solid #000000;
margin:0 auto;
}
</style>
<link href="#" rel="stylesheet" id="csslink" />
<script type="text/javascript">
var data = [
{ cid: "1", color: "blue", cssPath: "css\\blue.css" },
{ cid: "2", color: "red", cssPath: "css\\red.css" },
{ cid: "3", color: "yellow", cssPath: "css\\yellow.css" },
{ cid: "4", color: "green", cssPath: "css\\green.css" }];

var ulList;

window.onload=function()
{
ulList = document.getElementById("ulList");

for(var i=0;i<ulList.children.length;i++)
{
//给li设置属性cid
ulList.children[i].setAttribute("cid", data[i].cid);
//通过cid设置li的背景色
ulList.children[i].style.backgroundColor = setColor(ulList.children[i].getAttribute("cid"));
//通过cid获取cssPath
ulList.children[i].onclick =function()
{
var csslink = document.getElementById("csslink");
csslink.href = liClick(this.getAttribute("cid"));
// csslink.href = "css/" + this.style.backgroundColor + ".css";
}
}
}

//通过cid获取颜色
function setColor(cid)
{
for(var j=0;j<data.length;j++)
{
if(data[j].cid==cid)
{
return data[j].color;
}
}
}

//点击li更换div背景色
function liClick(cid)
{
for (var j = 0; j < data.length; j++)
{
if (data[j].cid == cid)
{
return data[j].cssPath;
}
}
}
</script>
</head>
<body>
<div id="div1">
<ul id="ulList">
<li>1</li><li>2</li><li>3</li><li>4</li>
</ul>
</div>
</body>
</html>

效果图如下：点击其中任意颜色，div的背景色也随着改变，JS基础~~~权当练练手~~~

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