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;
    },
    stop:function(){clearInterval(ia.timer)}
  };
}();

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