<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>鼠标移入移出改变图片透明度</title>
<style type="text/css">
#image {
margin: 50px auto;
width: 700px;
height: 600px;
}
img {
border: red 3px solid;
margin-right: 3px;
cursor: pointer;
opacity: 0.3;
}
#image .opacity {
opacity: 1;
}
</style>
<script type="text/javascript">
window.onload = function() {
var oMouse = document.getElementsByTagName("img");
for (var i = 0, item; item = oMouse[i++];) {
item.index = i - 1;
item.onmouseover = function() {
this.className = "opacity";
}
item.onmouseout = function() {
this.className = "";
}
}
}
</script>
</head>
<body>
<div id="image">
<script type="text/javascript">
var oimg = document.getElementById("image");
var str = "";
for (var i = 1; i < 11; i++) {
str += '<img src="image/' + i + '.jpg" >'
}
oimg.innerHTML = str;
</script>
</div>
</body>
</html>