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非常清凉简洁的图片演示风格->>JavaScript实现

作者:楚广明的…    文章来源:cnblogs.com    更新时间:2008-7-1 0:31:17

   大家经常在一些项目中使用产品图片演示,使用的最多的也许就是JQuery的插件了,今天我也上传一个我经常使用的产品演示插件,写的非常简洁很实用的,希望大家喜欢,以下是产品的Demo截图与Demo文件下载地址:

地址:http://www.lan27.com/code/slideshow/
下载地址:http://www.lan27.com/code/slideshow/CoolScript.rar


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>AJAX Photo Gallery</title>
<link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body>

<div id="gallery">
  <div id="imagearea">
    <div id="image">
      <a href="javascript:slideShow.nav(-1)" class="imgnav " id="previmg"></a>
      <a href="javascript:slideShow.nav(1)" class="imgnav " id="nextimg"></a>
    </div>
  </div>
  <div id="thumbwrapper">
    <div id="thumbarea">
      <ul id="thumbs">
        <li value="1"><img src="thumbs/1.jpg" width="179" height="100" alt="" /></li>
        <li value="2"><img src="thumbs/2.jpg" width="179" height="100" alt="" /></li>
        <li value="3"><img src="thumbs/3.jpg" width="179" height="100" alt="" /></li>
        <li value="4"><img src="thumbs/4.jpg" width="179" height="100" alt="" /></li>
        <li value="5"><img src="thumbs/5.jpg" width="179" height="100" alt="" /></li>
      </ul>
    </div>
  </div>
</div>

<script type="text/javascript">
var imgid = 'image';
var imgdir = 'fullsize';
var imgext = '.jpg';
var thumbid = 'thumbs';
var auto = true;
var autodelay = 5;
</script>
<script type="text/javascript" src="slide.js"></script>

</body>
</html>
var slideShow=function(){
    var bxs,bxe,fxs,fxe,ys,ye,ta,ia,ie,st,ss,ft,fs,xp,yp,ci,t,tar,tarl;
    ta=document.getElementById(thumbid); ia=document.getElementById(imgid);
    t=ta.getElementsByTagName('li'); ie=document.all?true:false;
    st=3; ss=3; ft=10; fs=5; xp,yp=0;
    return{
        init:function(){
            document.onmousemove=this.pos; window.onresize=function(){setTimeout("slideShow.lim()",500)};
            ys=this.toppos(ta); ye=ys+ta.offsetHeight;
            len=t.length;tar=[];
            for(i=0;i<len;i++){
                var id=t[i].value; tar[i]=id;
                t[i].onclick=new Function("slideShow.getimg('"+id+"')");
                if(i==0){this.getimg(id)}
            }
            tarl=tar.length;
        },
        scrl:function(d){
            clearInterval(ta.timer);
            var l=(d==-1)?0:(t[tarl-1].offsetLeft-(ta.parentNode.offsetWidth-t[tarl-1].offsetWidth)+10)
            ta.timer=setInterval(function(){slideShow.mv(d,l)},st);
        },
        mv:function(d,l){
            ta.style.left=ta.style.left||'0px';
            var left=ta.style.left.replace('px','');
            if(d==1){
                if(l-Math.abs(left)<=ss){
                    this.cncl(ta.id); ta.style.left='-'+l+'px';
                }else{ta.style.left=left-ss+'px'}
            }else{
                if(Math.abs(left)-l<=ss){
                    this.cncl(ta.id); ta.style.left=l+'px';
                }else{ta.style.left=parseInt(left)+ss+'px'}
            }
        },
        cncl:function(){clearTimeout(ta.timer)},
        getimg:function(id){
            if(auto){clearTimeout(ia.timer)}
            if(ci!=null){
                var ts,tsl,x;
                ts=ia.getElementsByTagName('img'); tsl=ts.length;x=0;
                for(x;x<tsl;x++){
                    if(ci.id!=id){var o=ts[x]; clearInterval(o.timer); o.timer=setInterval(function(){slideShow.fdout(o)},fs)}
                }
            }
            if(!document.getElementById(id)){
                var i=document.createElement('img');
                ia.appendChild(i);
                i.id=id; i.av=0; i.style.opacity=0;
                i.style.filter='alpha(opacity=0)';
                i.src=imgdir+'/'+id+imgext;
            }else{
                i=document.getElementById(id); clearInterval(i.timer);
            }
            i.timer=setInterval(function(){slideShow.fdin(i)},fs);
        },
        nav:function(d){
            var c=0;
            for(key in tar){if(tar[key]==ci.id){c=key}}
            if(tar[parseInt(c)+d]){
                this.getimg(tar[parseInt(c)+d]);
            }else{
                if(d==1){
                    this.getimg(tar[0]);
                }else{this.getimg(tar[tarl-1])}
            }
        },
        auto:function(){ia.timer=setInterval(function(){slideShow.nav(1)},autodelay*1000)},
        fdin:function(i){
            if(i.complete){i.av=i.av+fs; i.style.opacity=i.av/100; i.style.filter='alpha(opacity='+i.av+')'}
            if(i.av>=100){if(auto){this.auto()}; clearInterval(i.timer); ci=i}
        },
        fdout:function(i){
            i.av=i.av-fs; i.style.opacity=i.av/100;
            i.style.filter='alpha(opacity='+i.av+')';
            if(i.av<=0){clearInterval(i.timer); if(i.parentNode){i.parentNode.removeChild(i)}}
        },
        lim:function(){
            var taw,taa,len; taw=ta.parentNode.offsetWidth; taa=taw/4;
            bxs=slideShow.leftpos(ta); bxe=bxs+taa; fxe=bxs+taw; fxs=fxe-taa;
        },
        pos:function(e){
            xp=ie?event.clientX+document.documentElement.scrollLeft:e.pageX;
            yp=ie?event.clientY+document.documentElement.scrollTop:e.pageY;
            if(xp>bxs&&xp<bxe&&yp>ys&&yp<ye){
                slideShow.scrl(-1);
            }else if(xp>fxs&&xp<fxe&&yp>ys&&yp<ye){
                slideShow.scrl(1);
            }else{slideShow.cncl()}
        },
        leftpos:function(t){
            var l=0;
            if(t.offsetParent){
                while(1){l+=t.offsetLeft; if(!t.offsetParent){break}; t=t.offsetParent}
            }else if(t.x){l+=t.x}
            return l;
        },
        toppos:function(t){
            var p=0;
            if(t.offsetParent){
                while(1){p+=t.offsetTop; if(!t.offsetParent){break}; t=t.offsetParent}
            }else if(t.y){p+=t.y}
            return p;
        }
    };
}();

window.onload=function(){slideShow.init(); slideShow.lim()};

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