js+css写的图片自动切换

网上有很多的这样的js代码，今天没什么事，看了一段，自己模仿了一下，记录下来，什么时候再仔细钻研钻研……

1、html代码

View Code

 1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 2 <html>
 3 <head>
 4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 5 <title>图片自动切换</title>
 6 <link rel="stylesheet" type="text/css" href="css/picChange.css"/>
 7 <script language="javascript" src="js/picChange.js"></script>
 8 </head>
 9 <body>
10     <div id="main">
11         <div id="picWhole">
12             <div id="pic">
13                 <div id="picList">
14                     <ul>
15                         <li><a href="#" target="_blank"><img src="images/01.jpg" alt="性感美女1"/></a></li>
16                         <li><a href="#" target="_blank"><img src="images/02.jpg" alt="高挑美女2"/></a></li>
17                         <li><a href="#" target="_blank"><img src="images/03.jpg" alt="制服美女3"/></a></li>
18                         <li><a href="#" target="_blank"><img src="images/04.jpg" alt="漂亮美女4"/></a></li>
19                     </ul>
20                 </div>
21                 <div id="blank"></div>
22                 <div id="picText">
23                     <ul>
24                         <li class="current">2008年度全球第一美女。。。</li>
25                         <li class="normal">2002年以来时尚界的美女哦。。</li>
26                         <li class="normal">2005年的精致美女哦。。</li>
27                         <li class="normal">2012年的美女哦美女啊美女女。。</li>
28                     </ul>
29                 </div>
30             </div>
31             <div id="picFoucus">
32                 <ul>
33                     <li class="current"><img src="images/01.jpg" alt="性感美女1"/></li>
34                     <li class="normal"><img src="images/02.jpg" alt="性感美女1"/></li>
35                     <li class="normal"><img src="images/03.jpg" alt="性感美女1"/></li>
36                     <li class="normal"><img src="images/04.jpg" alt="性感美女1"/></li>
37                 </ul>
38             </div>
39         </div>
40     </div>
41 </body>
42 </html>

2、css 代码

View Code

/* 重置样式 */
*{
    margin: 0px;
    padding: 0px;
    word-break: break-all;
}

/* 整体的基础样式 */
body{
    background-color: #fff;
    color: #000;
    font: 12px/1.6em Helvetica, Arial, sans-serif;
    margin: 0px;
    text-align: center;
}

h1,h2,h3,h4,h5,h6{    font-size: 1em; }

a{
    color:#0287CA; 
    text-decoration:none;
}

a:hover{ text-decoration:underline;}

ul,li{    list-style:none;}

fieldset, img {     border:none; }
    
legend { display:none; }

em, strong, cite, th { 
    font-style:normal; 
    font-weight:normal; 
}

input, textarea, select, button { font:12px Helvetica, Arial, sans-serif; }

table { border-collapse:collapse; }

html { overflow:-moz-scrollbars-vertical; }

#main{
    width: 655px;
    margin: 0 auto;
    text-align: left;
}

/* 图片的全局样式 */
#picWhole{
    width:650px; 
    height:245px; 
    margin:0px; 
    border:1px solid #DEDEDE; 
    background:#F8F8F8; 
}

#pic{
    display:inline; 
    position:relative; 
    float:left; 
    width:540px; 
    height:225px; 
    overflow:hidden; 
    margin:10px 0 0 10px; 
}

#picList{    
    position:absolute;
    left: 0;
    top: 0;
}

#picList li{
     width:550px; 
     height:225px; 
     overflow:hidden;
}

#picList li img{
     width:550px; 
     height:225px; 
}

#picFoucus { 
    display:inline;
     float:right; 
     width:91px; 
     margin:9px 9px 0 0;
 }
 
#picFoucus li { 
    width:91px;
     height:57px; 
     cursor:pointer; 
     opacity:0.5; 
     -moz-opacity:0.5; 
     filter:alpha(opacity=50); 
}
#picFoucus img { 
    width:75px; 
    height:45px; 
    margin:7px 0 0 11px; 
}
#picFoucus .current { 
    background: url(images/01.jpg) no-repeat; 
    opacity:1; 
    -moz-opacity:1; 
    filter:alpha(opacity=100); 
}

/*  模拟文本后面的文本框 */
    #blank { 
    position:absolute; 
    left:0; 
    bottom:0; 
    width:545px; 
    height:35px; 
    background:#000; 
    opacity:0.5; 
    -moz-opacity:0.5; 
    filter:alpha(opacity=50); 
}

/* 设置图片文本的css样式 */
    #picText { 
    position:absolute; 
    left:8px; 
    bottom:8px; 
    color:#FFF; 
    font-size: 1.1em;
}
    #picText .normal { display:none; }

3、js代码

View Code

/**
 * author： 谯杨
 * published： 2012.08.07
 */

/**
 * @param id 获取元素的id
 * @return id所对应的结点
 */
var atuokey = false;

function $(id) { 
    return document.getElementById(id); 
}

function loadFunction(func){
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function(){
            oldonload();
            func();
        }
    }
}

//移动元素的函数
function moveElement(elementId, final_x, final_y, interval){
    node = $(elementId);

    if(node.movement){
        clearTimeout(node.movement);
    }
    if(!node.style.left){
        node.style.left = "0px";
    }
    if(!node.style.top){
        node.style.top = "0px";
    }

    var xpos = parseInt(node.style.left);
    var ypos = parseInt(node.style.top);
    if(xpos == final_x && ypos == final_y){
        return true;
    }
    if(xpos < final_x){
        var dis = Math.ceil((final_x - xpos)/10)
        xpos += dis;
    }
    if(xpos > final_x){
        var dis = Math.ceil((xpos-final_x)/10);
        xpos -= dis;
    }
    if(ypos < final_y){
        var dis = Math.ceil((final_y - ypos)/10);
        ypos += dis;
    }
    if(ypos > final_y){
        var dis = Math.ceil((ypos - final_y) /10);
        ypos -= dis;
    }

    node.style.left = xpos + "px";
    node.style.top = ypos + "px";

    var repeat = "moveElement('"+elementId+"',"+final_x+","+final_y+","+interval+")";
    node.movement = setInterval(repeat,interval);
}

function classNormal(picFoucusId, picTextId){
    var focusNodes = $(picFoucusId).getElementsByTagName("li");
    var textNodes = $(picTextId).getElementsByTagName("li");
    for(var i = 0; i < 4; i++ ){
        focusNodes[i].className = "normal";
        textNodes[i].className = "normal";
    }
}

function classCurrent(picFoucusId, picTextId, n){
    var focusNodes = $(picFoucusId).getElementsByTagName("li");
    var textNodes = $(picTextId).getElementsByTagName("li");
    focusNodes[n].className = "current";
    textNodes[n].className = "current";
}

function picSwitch(){
    if(!$("picWhole")) return false;
    $("picWhole").onmouseover = function(){atuokey = true};
    $("picWhole").onmouseout = function(){atuokey = false};
    var picFocus = $("picFoucus").getElementsByTagName('li');
    var listLength = picFocus.length;
    if(listLength == 4){
        picFocus[0].onmouseover = function() {
                moveElement('picList',0,0,10);
                classNormal('picFoucus','picText');
                classCurrent('picFoucus','picText',0);
            }
            picFocus[1].onmouseover = function() {
                    moveElement('picList',0,-225,10);
                    classNormal('picFoucus','picText');
                    classCurrent('picFoucus','picText',1);
            }
            picFocus[2].onmouseover = function() {
                moveElement("picList", 0, -450, 10);
                classNormal('picFoucus','picText');
                classCurrent('picFoucus','picText',2);
            }
            picFocus[3].onmouseover = function() {
                moveElement('picList',0,-675,10);
                classNormal('picFoucus','picText');
                classCurrent('picFoucus','picText',3);
            }
    }
}

function operation(n){
    var x = [0, -225, -450, -675];
    if(n == 3){
        moveElement('picList',0,x[n-3],10);
        classNormal('picFoucus','picText');
        classCurrent('picFoucus','picText',0);
    }else{
        moveElement('picList',0,x[n+1],10);
        classNormal('picFoucus','picText');
        classCurrent('picFoucus','picText',n+1);
    }    
}

function autoSwitch() {
    if(!$('picWhole')) return false;
    if(atuokey) return false;
    var picFocus = $('picFoucus').getElementsByTagName('li');
    var listLength = picFocus.length;
    var currentNum = -1;
    for(var i=0; i<listLength; i++) {
        if (picFocus[i].className == 'current') {
                currentNum = i;
                break;
        }
    }
    operation(currentNum);
}
setInterval("autoSwitch()", 3000);
loadFunction(picSwitch);

posted on 2012-08-07 17:12 幸福从不迟疑阅读(3372) 评论(0) 编辑收藏举报