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=12; 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()};