1、图片自动依次轮换，每轮换到一张图片，下面对应的小图标出现红色边框，并显示对应的图片名称
2、鼠标放到大图片上面的时，图片停止轮换，一直显示当前图片；鼠标移开后图片继续轮换
3、鼠标移到小图标上时，大图片区域会显示对应的大图；鼠标移开则从当前图片开始继续轮换
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>带小图标的JS图片轮换</title>
<style type="text/css">
*{
margin: 0px;
padding: 0px;
}
#content{
700px;
height: 538px;
margin: 0px auto; /*使所有内容居中*/
border: solid #F0F0F0;
}
/*定义下面小图标处样式*/
#nav1 table{
100%;
height: 35px;
margin-top: -4px;
}
#nav1 td{
35px;
height: 35px;
text-align: center; /*文字居中*/
color: #ffffff;
}
#text{
}
#_text{
100%;
height: 100%;
background-color: #F0F0F0;
border: none;
text-align: center;
font-size: 18px;
color: #000000;
font-weight: bold;
}
</style>
</head>
<body onload="changeImg()">
<div id="content">
<div id="images">
<img id="_photoes" src="../images/textPhoto/1.jpg" height="500px" width="700px" onmouseover="over1()" onmouseout="out1()">
</div>
<div id="nav1">
<table border="0">
<tr>
<td id="text" bgcolor="#F0F0F0" colspan="15"><input type="text" id="_text" readonly></td>
<td id="img1" class="sImg" bgcolor="#db7093" onmouseover="over2(1)" onmouseout="out2(1)">1</td>
<td id="img2" class="sImg" bgcolor="#da70d6" onmouseover="over2(2)" onmouseout="out2(2)">2</td>
<td id="img3" class="sImg" bgcolor="#9acd32" onmouseover="over2(3)" onmouseout="out2(3)">3</td>
<td id="img4" class="sImg" bgcolor="#adff2f" onmouseover="over2(4)" onmouseout="out2(4)">4</td>
<td id="img5" class="sImg" bgcolor="#00bfff" onmouseover="over2(5)" onmouseout="out2(5)">5</td>
</tr>
</table>
</div>
</div>
<script type="text/javascript">
//将轮换的大图片放入数组中
var arr = new Array();
arr[0] = "../images/textPhoto/1.jpg";
arr[1] = "../images/textPhoto/2.jpg";
arr[2] = "../images/textPhoto/3.jpg";
arr[3] = "../images/textPhoto/4.jpg";
arr[4] = "../images/textPhoto/5.jpg";
//将input区域变换的文字放在数组里
var text = new Array();
text[0] = "焦点图1";
text[1] = "焦点图2";
text[2] = "焦点图3";
text[3] = "焦点图4";
text[4] = "焦点图5";
var smallImg = document.getElementsByClassName("sImg"); //将页面上所有小图片存放在一个数组
var num = 0;
function changeImg() {
document.getElementById("_photoes").src = arr[num];
document.getElementById("_text").value = text[num];
//当前小图标增加边框样式
for(var i=0;i<arr.length;i++) {
if(i==num) smallImg[num].style.border = "red solid"; //大图标对应的小图标增加边框样式
else smallImg[i].style.border = "none";
}
if (num == arr.length - 1) num = 0; //如果显示的是最后一张图片，则图片序号变为第一张的序号
else num += 1; //图片序号加一
}
var setID = setInterval("changeImg()",1000); //这样写任然会不断调用changeImg()函数
/*当鼠标滑到大图标上时*/
function over1() {
clearInterval(setID); //图片停止轮换
// smallImg[n-1].style.border = "red solid";
}
/*当鼠标离开大图标时*/
function out1() {
setID = setInterval("changeImg()",1000); //图片继续轮换
// smallImg[n-1].style.border = "none"; //大图标对应的小图标边框样式取消
}
/*当鼠标滑到小图标上时*/
function over2(n) {
document.getElementById("_photoes").src = arr[n-1]; //只要鼠标滑到小图标上，大图区域就显示对应的图片
document.getElementById("_text").value = text[n-1];
clearInterval(setID); //图片停止轮换
//当前小图标增加边框样式
for(var i=0;i<arr.length;i++) {
if(i==n-1) smallImg[n-1].style.border = "red solid";
else smallImg[i].style.border = "none";
}
}
/*当鼠标离开小图标时*/
function out2(n) {
if(n!=arr.length)
num = n; //从当前图片开始轮换
else num = 0;
setID = setInterval("changeImg()",1000); //图片继续轮换
// smallImg[n-1].style.border = "none"; //小图标边框样式取消
}
</script>
</body>
</html>