rainyjune · August 21, 2014 06:30
diff --git a/gistfile1.js b/gistfile1.js
 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="utf-8" />
 <title>Js图片无缝滚动</title>
 <style type="text/css">
 body{
 background:gray;
 }
 #wrap{
 width:810px;
 height:200px;
 border:1px solid black;
 position:relative;
 /*
 left:50%;
 top:50%;
 margin-left:-410px;
 margin-top:-250px;
 */
 margin-left: auto;
 margin-right: auto;
 background:#F5E0E3;
 overflow:hidden;
 }
 #wrap ul{
 margin:0px;
 padding:0px;
 position:absolute;
 top:0px;
 left:0px;
 }
 #wrap ul li{
 list-style:none;
 float:left;
 margin:5px 10px;
 }
 #wrap ul li img{
 width:250px;
 height:180px;
 cursor:pointer;
 }
 .direction{
 width:104px;
 margin:50px auto;
 }
 .direction img{
 border:1px dotted pink;
 cursor:pointer;
 }
 .active{
 border:2px solid gray;
 }
 </style>
 <script type="text/javascript">
 window.onload = initAll;
 function initAll(){
 	var ul = document.getElementById("wrap").getElementsByTagName("ul")[0];
 	var lis = ul.getElementsByTagName("li");
 	var btn1 = document.getElementById("button1");
 	var btn2 = document.getElementById("button2");
 	var imgs = ul.getElementsByTagName("img");
 	var speed = 3;
 	var time = null;
  var activeImg = null;
  
 	ul.innerHTML += ul.innerHTML;
  var ulWidth = (lis[0].offsetWidth+20)*lis.length + "px";
 	ul.style.width = ulWidth;
  
  function moveFunction() {
    ul.style.left = ul.offsetLeft - speed + "px";
 		if(ul.offsetLeft <= -ul.offsetWidth/2){
 			ul.style.left ="0px";
 		}else if(ul.offsetLeft >=0){
 			ul.style.left = -ul.offsetWidth/2 + "px";
 		}
  }
 	
 	time = setInterval(moveFunction,30);
 	
 	btn1.onmouseover = function(){
 		speed = 3;
 	};
 	btn2.onmouseover = function(){
 		speed = -3;
 	};
  
  ul.onmouseover = function(e) {
    clearInterval(time);
    e = e || window.event;
    var source = e.target || e.srcElement;
    var sourceTagName = source.tagName;
    
    console.log("source:", source.tagName);
    
    if (sourceTagName.toLowerCase() == "img") {
      activeImg = source;
      activeImg.className = "active";
    }
    
    if (e.stopPropagation) {
      e.stopPropagation();
    } else {
      e.cancelBubble = true;
    }
    return false;
  };
  
  ul.onmouseout = function() {
    time = setInterval(moveFunction,30);
    if (activeImg) {
      activeImg.className = "none";
      activeImg = null;
    }
  };
 }
 </script>
 </head>
 <body>
 <div class="direction"><img src="/jscss/demoimg/201204/left.png" alt="" id="button1"/><img src="/jscss/demoimg/201204/right.png" alt="" id="button2"/></div>
 <div id="wrap">
 <ul>
 <li><img src="http://www.codefans.net/jscss/demoimg/wall1.jpg" alt="pic one" /></li>
 <li><img src="http://www.codefans.net/jscss/demoimg/wall2.jpg" alt="pic two" /></li>
 <li><img src="http://www.codefans.net/jscss/demoimg/wall3.jpg" alt="pic three" /></li>
 <li><img src="http://www.codefans.net/jscss/demoimg/wall4.jpg" alt="pic four" /></li>
 </ul>
 </div>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8" />
	<title>Js图片无缝滚动</title>
	<style type="text/css">
	body{
	background:gray;
	}
	#wrap{
	width:810px;
	height:200px;
	border:1px solid black;
	position:relative;
	/*
	left:50%;
	top:50%;
	margin-left:-410px;
	margin-top:-250px;
	*/
	margin-left: auto;
	margin-right: auto;
	background:#F5E0E3;
	overflow:hidden;
	}
	#wrap ul{
	margin:0px;
	padding:0px;
	position:absolute;
	top:0px;
	left:0px;
	}
	#wrap ul li{
	list-style:none;
	float:left;
	margin:5px 10px;
	}
	#wrap ul li img{
	width:250px;
	height:180px;
	cursor:pointer;
	}
	.direction{
	width:104px;
	margin:50px auto;
	}
	.direction img{
	border:1px dotted pink;
	cursor:pointer;
	}
	.active{
	border:2px solid gray;
	}
	</style>
	<script type="text/javascript">
	window.onload = initAll;
	function initAll(){
	var ul = document.getElementById("wrap").getElementsByTagName("ul")[0];
	var lis = ul.getElementsByTagName("li");
	var btn1 = document.getElementById("button1");
	var btn2 = document.getElementById("button2");
	var imgs = ul.getElementsByTagName("img");
	var speed = 3;
	var time = null;
	var activeImg = null;

	ul.innerHTML += ul.innerHTML;
	var ulWidth = (lis[0].offsetWidth+20)*lis.length + "px";
	ul.style.width = ulWidth;

	function moveFunction() {
	ul.style.left = ul.offsetLeft - speed + "px";
	if(ul.offsetLeft <= -ul.offsetWidth/2){
	ul.style.left ="0px";
	}else if(ul.offsetLeft >=0){
	ul.style.left = -ul.offsetWidth/2 + "px";
	}
	}

	time = setInterval(moveFunction,30);

	btn1.onmouseover = function(){
	speed = 3;
	};
	btn2.onmouseover = function(){
	speed = -3;
	};

	ul.onmouseover = function(e) {
	clearInterval(time);
	e = e \|\| window.event;
	var source = e.target \|\| e.srcElement;
	var sourceTagName = source.tagName;

	console.log("source:", source.tagName);

	if (sourceTagName.toLowerCase() == "img") {
	activeImg = source;
	activeImg.className = "active";
	}

	if (e.stopPropagation) {
	e.stopPropagation();
	} else {
	e.cancelBubble = true;
	}
	return false;
	};

	ul.onmouseout = function() {
	time = setInterval(moveFunction,30);
	if (activeImg) {
	activeImg.className = "none";
	activeImg = null;
	}
	};
	}
	</script>
	</head>
	<body>
	<div class="direction"><img src="/jscss/demoimg/201204/left.png" alt="" id="button1"/><img src="/jscss/demoimg/201204/right.png" alt="" id="button2"/></div>
	<div id="wrap">
	<ul>
	<li><img src="http://www.codefans.net/jscss/demoimg/wall1.jpg" alt="pic one" /></li>
	<li><img src="http://www.codefans.net/jscss/demoimg/wall2.jpg" alt="pic two" /></li>
	<li><img src="http://www.codefans.net/jscss/demoimg/wall3.jpg" alt="pic three" /></li>
	<li><img src="http://www.codefans.net/jscss/demoimg/wall4.jpg" alt="pic four" /></li>
	</ul>
	</div>
	</body>
	</html>