JS实现点击按钮控制Div变宽、增高、调整背景色等

时间：2013-08-09 08:28 来源：互联网作者：源码搜藏浏览：次收藏挑错推荐打印

<!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>点击按钮改变CSS样式-源码搜藏</title>
<style type="text/css">
* {
	padding:0px;
	margin:0px;
}
.box {
	width:300px;
	height:300px;
	border:1px solid #CBC4F7;
	font-size:13px;
	margin:100px auto;
}
.divWidth {
	width:400px;
}
.divHeight {
	height:400px;
}
.divBgColor {
	background-color:#DCF3B1;
}
p {
	padding:15px 5px;
}
ul li {
	list-style:none;
	width:140px;
	height:32px;
	text-align:center;
	line-height:32px;
	background-color:#C4EA84;
	border:1px solid #9BEA75;
	margin:0px auto;
	margin-bottom:10px;
	cursor:pointer;
	background-image:-webkit-linear-gradient(top, #C4EA84, #53AC28);
	background-image:-moz-linear-gradient(top, #C4EA84, #53AC28);
	background-image:-o-linear-gradient(top, #C4EA84, #53AC28);
	-webkit-border-radius:4px;
	-moz-border-radius:4px;
	-o-border-radius:4px;	
}
</style>
<script type="text/javascript">
window.onload=function(){ 
	var btn1 = document.getElementById("btn1");
	var btn2 = document.getElementById("btn2");
	var btn3 = document.getElementById("btn3");
	funClick = function(btnID,changeClass){
		btnID.onclick = function() {
			var boxClass = btnID.parentNode.parentNode.className;
			var ifClass = boxClass.indexOf(changeClass);
			if(ifClass < 0){
				boxClass = boxClass + " " + changeClass;
			}else {
				boxClass = boxClass.replace(changeClass,"");			
			}
			btnID.parentNode.parentNode.className = boxClass;		
		}	
	}
	funClick(btn1,"divWidth");
	funClick(btn2,"divHeight");
	funClick(btn3,"divBgColor");

}
</script>
</head>
<body>
<div class="box">
<p>这里是少许文本</p>
        <ul>
        <li id="btn1">点我调整宽度</li>
            <li id="btn2">点我调整高度</li>
            <li id="btn3">点我调整背景颜色</li>
        </ul>
    </div>
</body>
</html>

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