js控制多图左右滚动切换效果代码分享

本文实例讲述了js控制多图左右滚动切换效果。分享给大家供大家参考。具体如下：
这是一款纯js实现点击左右按钮图片自动左右平滑滚动，默认5个一组左右滚动，可以手动修改js参数更改滑动数量。
运行效果图：-------------------查看效果-------------------

小提示：浏览器中如果不能正常运行，可以尝试切换浏览模式。
为大家分享的js控制多图左右滚动切换效果代码如下

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>js控制多图左右滚动切换效果</title>
<link href="css/jiaobenzhijia.css" type="text/css" rel="stylesheet" />
<script type="text/javascript">
window.onload = function () {
 var oBtnLeft = document.getElementById("goleft");
 var oBtnRight = document.getElementById("goright");
 var oDiv = document.getElementById("indexmaindiv");
 var oDiv1 = document.getElementById("maindiv1");
 var oUl = oDiv.getElementsByTagName("ul")[0];
 var aLi = oUl.getElementsByTagName("li");
 var now = -5 * (aLi[0].offsetWidth + 13);
 oUl.style.width = aLi.length * (aLi[0].offsetWidth + 13) + 'px';
 oBtnRight.onclick = function () {
 var n = Math.floor((aLi.length * (aLi[0].offsetWidth + 13) + oUl.offsetLeft) / aLi[0].offsetWidth);

 if (n <= 5) {
 move(oUl, 'left', 0);
 }
 else {
 move(oUl, 'left', oUl.offsetLeft + now);
 }
 }
 oBtnLeft.onclick = function () {
 var now1 = -Math.floor((aLi.length / 5)) * 5 * (aLi[0].offsetWidth + 13);

 if (oUl.offsetLeft >= 0) {
 move(oUl, 'left', now1);
 }
 else {
 move(oUl, 'left', oUl.offsetLeft - now);
 }
 }
 var timer = setInterval(oBtnRight.onclick, 5000);
 oDiv.onmouseover = function () {
 clearInterval(timer);
 }
 oDiv.onmouseout = function () {
 timer = setInterval(oBtnRight.onclick, 5000);
 }

};

function getStyle(obj, name) {
 if (obj.currentStyle) {
 return obj.currentStyle[name];
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 return getComputedStyle(obj, false)[name];
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}

function move(obj, attr, iTarget) {
 clearInterval(obj.timer)
 obj.timer = setInterval(function () {
 var cur = 0;
 if (attr == 'opacity') {
 cur = Math.round(parseFloat(getStyle(obj, attr)) * 100);
 }
 else {
 cur = parseInt(getStyle(obj, attr));
 }
 var speed = (iTarget - cur) / 6;
 speed = speed > 0 ? Math.ceil(speed) : Math.floor(speed);
 if (iTarget == cur) {
 clearInterval(obj.timer);
 }
 else if (attr == 'opacity') {
 obj.style.filter = 'alpha(opacity:' + (cur + speed) + ')';
 obj.style.opacity = (cur + speed) / 100;
 }
 else {
 obj.style[attr] = cur + speed + 'px';
 }
 }, 30);
}
</script>
</head>
<body style="background:#CCC;">

<div class="indexmaindiv" id="indexmaindiv">
 <div class="indexmaindiv1 clearfix" >
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 <div class="detailimg"><img src="images/4.jpg" /></div>
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 </div>
 </li>
 </ul>
 </div>
 <div class="stylesgoright" id="goright"></div>
 </div>
</div>
</body>
</html>

以上就是为大家分享的js控制多图左右滚动切换效果代码，希望大家可以喜欢。