(function($){
	$.fn.slide=function(options){
		$.fn.slide.defaults={
		type:"slide", 
		effect:"fade", 
		autoplay:false, 
		delaytime:500, 
		intertime:2500,
		triggertime:150,
		defaultindex:0,
		titcell:".banner_li li",
		maincell:".bd",
		targetcell:null,
		trigger:"mouseover",
		scroll:1,
		vis:1,
		titonclassname:"on",
		autopage:false, 
		prevcell:".prev",
		nextcell:".next",
		pagestatecell:".pagestate",
		opp: false, 
		pnloop:true, 
		easing:"swing", 
		startfun:null,
		endfun:null,
		switchload:null,

		playstatecell:".playstate",
		mouseoverstop:true,
		defaultplay:true,
		returndefault:false 
		};

		return this.each(function() {

			var opts = $.extend({},$.fn.slide.defaults,options);
			var slider = $(this);
			var effect = opts.effect;
			var prevbtn = $(opts.prevcell, slider);
			var nextbtn = $(opts.nextcell, slider);
			var pagestate = $(opts.pagestatecell, slider);
			var playstate = $(opts.playstatecell, slider);

			var navobj = $(opts.titcell, slider);//导航子元素结合
			var navobjsize = navobj.size();
			var conbox = $(opts.maincell , slider);//内容元素父层对象
			var conboxsize=conbox.children().size();
			var sload=opts.switchload;
			var tarobj = $(opts.targetcell, slider);

			/*字符串转换*/
			var index=parseint(opts.defaultindex);
			var delaytime=parseint(opts.delaytime);
			var intertime=parseint(opts.intertime);
			var triggertime=parseint(opts.triggertime);
			var scroll=parseint(opts.scroll);
			var vis=parseint(opts.vis);
			var autoplay = (opts.autoplay=="false"||opts.autoplay==false)?false:true;
			var opp = (opts.opp=="false"||opts.opp==false)?false:true;
			var autopage = (opts.autopage=="false"||opts.autopage==false)?false:true;
			var pnloop = (opts.pnloop=="false"||opts.pnloop==false)?false:true;
			var mouseoverstop = (opts.mouseoverstop=="false"||opts.mouseoverstop==false)?false:true;
			var defaultplay = (opts.defaultplay=="false"||opts.defaultplay==false)?false:true;
			var returndefault = (opts.returndefault=="false"||opts.returndefault==false)?false:true;

			var slideh=0;
			var slidew=0;
			var selfw=0;
			var selfh=0;
			var easing=opts.easing;
			var inter=null;//autoplay-setinterval 
			var mst =null;//trigger-settimeout
			var rtnst=null;//returndefault-settimeout
			var titon = opts.titonclassname;

			var onindex = navobj.index( slider.find( "."+titon) );
			var oldindex = index = onindex==-1?index:onindex;
			var defaultindex = index;


			var _ind = index;
			var clonenum = conboxsize>=vis?( conboxsize%scroll!=0?conboxsize%scroll:scroll):0; 
			var _tar;
			var ismarq = effect=="leftmarquee" || effect=="topmarquee"?true:false;

			var dostartfun=function(){ if ( $.isfunction( opts.startfun) ){ opts.startfun( index,navobjsize,slider,$(opts.titcell, slider),conbox,tarobj,prevbtn,nextbtn ) } }
			var doendfun=function(){ if ( $.isfunction( opts.endfun ) ){ opts.endfun( index,navobjsize,slider,$(opts.titcell, slider),conbox,tarobj,prevbtn,nextbtn ) } }
			var reseton=function(){ navobj.removeclass(titon); if( defaultplay ) navobj.eq(defaultindex).addclass(titon)  }



			//单独处理菜单效果
			if( opts.type=="menu" ){

				if( defaultplay ){ navobj.removeclass(titon).eq(index).addclass(titon); }
				navobj.hover(
						function(){
							_tar=$(this).find( opts.targetcell );
							var hoverind =navobj.index($(this));
						
							mst = settimeout(function(){  
								index=hoverind;
								navobj.removeclass(titon).eq	(index).addclass(titon);
								dostartfun();
								switch (effect)
								{
									case "fade":_tar.stop(true,true).animate({opacity:"show"}, delaytime,easing,doendfun ); break;
									case "slidedown":_tar.stop(true,true).animate({height:"show"}, delaytime,easing,doendfun ); break;
								}
							} ,opts.triggertime);

						},function(){
							cleartimeout(mst);
							switch (effect){ case "fade":_tar.animate( {opacity:"hide"},delaytime,easing ); break; case "slidedown":_tar.animate( {height:"hide"},delaytime,easing ); break; }
						}
				);

				if (returndefault){ 
					slider.hover(function(){cleartimeout(rtnst);},function(){ rtnst = settimeout( reseton,delaytime ); });
				}
				

				return;
			}

			
			//处理分页
			if( navobjsize==0 )navobjsize=conboxsize;//只有左右按钮
			if( ismarq ) navobjsize=2;
			if( autopage ){
				if(conboxsize>=vis){
					if( effect=="leftloop" || effect=="toploop" ){ navobjsize=conboxsize%scroll!=0?(conboxsize/scroll^0)+1:conboxsize/scroll; }
					else{ 
							var temps = conboxsize-vis;
							navobjsize=1+parseint(temps%scroll!=0?(temps/scroll+1):(temps/scroll)); 
							if(navobjsize<=0)navobjsize=1; 
					}
				}
				else{ navobjsize=1 }
				
				navobj.html(""); 
				var str="";

				if( opts.autopage==true || opts.autopage=="true" ){ for( var i=0; i<navobjsize; i++ ){ str+="<li>"+(i+1)+"</li>" } }
				else{ for( var i=0; i<navobjsize; i++ ){ str+=opts.autopage.replace("$",(i+1))  } }
				navobj.html(str); 
				
				var navobj = navobj.children();//重置导航子元素对象
			}


			if(conboxsize>=vis){ //当内容个数少于可视个数，不执行效果。
				conbox.children().each(function(){ //取最大值
					if( $(this).width()>selfw ){ selfw=$(this).width(); slidew=$(this).outerwidth(true);  }
					if( $(this).height()>selfh ){ selfh=$(this).height(); slideh=$(this).outerheight(true);  }
				});

				var _chr = conbox.children();
				var cloneele = function(){ 
					for( var i=0; i<vis ; i++ ){ _chr.eq(i).clone().addclass("clone").appendto(conbox); } 
					for( var i=0; i<clonenum ; i++ ){ _chr.eq(conboxsize-i-1).clone().addclass("clone").prependto(conbox); }
				}
				
				switch(effect)
				{
					case "fold": conbox.css({"position":"relative","width":slidew,"height":slideh}).children().css( {"position":"absolute","width":selfw,"left":0,"top":0,"display":"none"} ); break;
					case "top": conbox.wrap('<div class="tempwrap" style="overflow:hidden; position:relative; height:'+vis*slideh+'px"></div>').css( { "top":-(index*scroll)*slideh, "position":"relative","padding":"0","margin":"0"}).children().css( {"height":selfh} ); break;
					case "left": conbox.wrap('<div class="tempwrap" style="overflow:hidden; position:relative; width:'+vis*slidew+'px"></div>').css( { "width":conboxsize*slidew,"left":-(index*scroll)*slidew,"position":"relative","overflow":"hidden","padding":"0","margin":"0"}).children().css( {"float":"left","width":selfw} ); break;
					case "leftloop":
					case "leftmarquee":
						cloneele();
						conbox.wrap('<div class="tempwrap" style="overflow:hidden; position:relative; width:'+vis*slidew+'px"></div>').css( { "width":(conboxsize+vis+clonenum)*slidew,"position":"relative","overflow":"hidden","padding":"0","margin":"0","left":-(clonenum+index*scroll)*slidew}).children().css( {"float":"left","width":selfw}  ); break;
					case "toploop":
					case "topmarquee":
						cloneele();
						conbox.wrap('<div class="tempwrap" style="overflow:hidden; position:relative; height:'+vis*slideh+'px"></div>').css( { "height":(conboxsize+vis+clonenum)*slideh,"position":"relative","padding":"0","margin":"0","top":-(clonenum+index*scroll)*slideh}).children().css( {"height":selfh} ); break;
				}
			}



			//针对leftloop、toploop的滚动个数
			var scrollnum=function(ind){ 
				var _tempcs= ind*scroll; 
				if( ind==navobjsize ){ _tempcs=conboxsize; }else if( ind==-1 && conboxsize%scroll!=0){ _tempcs=-conboxsize%scroll; }
				return _tempcs;
			}

			//切换加载
			var doswitchload=function(objs){ 

					var changeimg=function(t){
						for ( var i= t; i<( vis+ t); i++ ){
								objs.eq(i).find("img["+sload+"]").each(function(){ 
									var _this =  $(this);
									_this.attr("src",_this.attr(sload)).removeattr(sload);
									if( conbox.find(".clone")[0] ){ //如果存在.clone
										var chir = conbox.children();
										for ( var j=0 ; j< chir.size() ; j++ )
										{
											chir.eq(j).find("img["+sload+"]").each(function(){
												if( $(this).attr(sload)==_this.attr("src") ) $(this).attr("src",$(this).attr(sload)).removeattr(sload) 
											})
										}
									}
								})
							}
					}

					switch(effect)
					{
						case "fade": case "fold": case "top": case "left": case "slidedown":
							changeimg( index*scroll );
							break;
						case "leftloop": case "toploop":
							changeimg( clonenum+scrollnum(_ind) );
							break;
						case "leftmarquee":case "topmarquee": 
							var curs = effect=="leftmarquee"? conbox.css("left").replace("px",""):conbox.css("top").replace("px",""); 
							var slidet = effect=="leftmarquee"? slidew:slideh; 
							var mnum=clonenum;
							if( curs%slidet!=0 ){
								var curp = math.abs(curs/slidet^0);
								if( index==1 ){ mnum=clonenum+curp }else{  mnum=clonenum+curp-1  }
							}
							changeimg( mnum );
							break;
					}
			}//doswitchload end


			//效果函数
			var doplay=function(init){
				 // 当前页状态不触发效果
				if( defaultplay && oldindex==index && !init && !ismarq ) return;
				
				//处理页码
				if( ismarq ){ if ( index>= 1) { index=1; } else if( index<=0) { index = 0; } }
				else{ 
					_ind=index; if ( index >= navobjsize) { index = 0; } else if( index < 0) { index = navobjsize-1; }
				}

				dostartfun();

				//处理切换加载
				if( sload!=null ){ doswitchload( conbox.children() ) }

				//处理targetcell
				if(tarobj[0]){ 
					_tar = tarobj.eq(index);
					if( sload!=null ){ doswitchload( tarobj ) }
					if( effect=="slidedown" ){
							tarobj.not(_tar).stop(true,true).slideup(delaytime); 
							_tar.slidedown( delaytime,easing,function(){ if(!conbox[0]) doendfun() }); 
					}
					else{
							tarobj.not(_tar).stop(true,true).hide();
							_tar.animate({opacity:"show"},delaytime,function(){ if(!conbox[0]) doendfun() }); 
					}
				}
				
				if(conboxsize>=vis){ //当内容个数少于可视个数，不执行效果。
					switch (effect)
					{
						case "fade":conbox.children().stop(true,true).eq(index).animate({opacity:"show"},delaytime,easing,function(){doendfun()}).siblings().hide(); break;
						case "fold":conbox.children().stop(true,true).eq(index).animate({opacity:"show"},delaytime,easing,function(){doendfun()}).siblings().animate({opacity:"hide"},delaytime,easing);break;
						case "top":conbox.stop(true,false).animate({"top":-index*scroll*slideh},delaytime,easing,function(){doendfun()});break;
						case "left":conbox.stop(true,false).animate({"left":-index*scroll*slidew},delaytime,easing,function(){doendfun()});break;
						case "leftloop":
							var __ind = _ind;
							conbox.stop(true,true).animate({"left":-(scrollnum(_ind)+clonenum)*slidew},delaytime,easing,function(){
								if( __ind<=-1 ){ conbox.css("left",-(clonenum+(navobjsize-1)*scroll)*slidew);  }else if( __ind>=navobjsize ){ conbox.css("left",-clonenum*slidew); }
								doendfun();
							});
							break;//leftloop end

						case "toploop":
							var __ind = _ind;
							conbox.stop(true,true).animate({"top":-(scrollnum(_ind)+clonenum)*slideh},delaytime,easing,function(){
								if( __ind<=-1 ){ conbox.css("top",-(clonenum+(navobjsize-1)*scroll)*slideh);  }else if( __ind>=navobjsize ){ conbox.css("top",-clonenum*slideh); }
								doendfun();
							});
							break;//toploop end

						case "leftmarquee":
							var templeft = conbox.css("left").replace("px",""); 
							if(index==0 ){
									conbox.animate({"left":++templeft},0,function(){
										if( conbox.css("left").replace("px","")>= 0){ conbox.css("left",-conboxsize*slidew) }
									});
							}
							else{
									conbox.animate({"left":--templeft},0,function(){
										if(  conbox.css("left").replace("px","")<= -(conboxsize+clonenum)*slidew){ conbox.css("left",-clonenum*slidew) }
									});
							}break;// leftmarquee end

							case "topmarquee":
							var temptop = conbox.css("top").replace("px",""); 
							if(index==0 ){
									conbox.animate({"top":++temptop},0,function(){
										if( conbox.css("top").replace("px","")>= 0){ conbox.css("top",-conboxsize*slideh) }
									});
							}
							else{
									conbox.animate({"top":--temptop},0,function(){
										if(  conbox.css("top").replace("px","")<= -(conboxsize+clonenum)*slideh){ conbox.css("top",-clonenum*slideh) }
									});
							}break;// topmarquee end

					}//switch end
				}

					navobj.removeclass(titon).eq(index).addclass(titon);
					oldindex=index;
					if( !pnloop ){ //pnloop控制前后按钮是否继续循环
						nextbtn.removeclass("nextstop"); prevbtn.removeclass("prevstop");
						if (index==0 ){ prevbtn.addclass("prevstop"); }
						if (index==navobjsize-1 ){ nextbtn.addclass("nextstop"); }
					}

					pagestate.html( "<span>"+(index+1)+"</span>/"+navobjsize);

			};// doplay end

			//初始化执行
			if( defaultplay ){ doplay(true); }

			if (returndefault)//返回默认状态
			{
				slider.hover(function(){ cleartimeout(rtnst) },function(){
						rtnst = settimeout( function(){
							index=defaultindex;
							if(defaultplay){ doplay(); }
							else{
								if( effect=="slidedown" ){ _tar.slideup( delaytime, reseton ); }
								else{ _tar.animate({opacity:"hide"},delaytime,reseton ); }
							}
							oldindex=index;
						},300 );
				});
			}
			
			///自动播放函数
			var setinter = function(time){ inter=setinterval(function(){  opp?index--:index++; doplay() }, !!time?time:intertime);  }
			var setmarinter = function(time){ inter = setinterval(doplay, !!time?time:intertime);  }
			// 处理mouseoverstop
			var resetinter = function(){ if( !mouseoverstop ){clearinterval(inter); setinter() } }
			// 前后按钮触发
			var nexttrigger = function(){ if ( pnloop || index!=navobjsize-1 ){ index++; doplay(); if(!ismarq)resetinter(); } }
			var prevtrigger = function(){ if ( pnloop || index!=0 ){ index--; doplay(); if(!ismarq)resetinter(); } }
			//处理playstate
			var playstatefun = function(){ clearinterval(inter); ismarq?setmarinter():setinter(); playstate.removeclass("pausestate") }
			var pausestatefun = function(){ clearinterval(inter);playstate.addclass("pausestate"); }

			//自动播放
			if (autoplay) {
					if( ismarq ){ 
						opp?index--:index++; setmarinter();
						if(mouseoverstop) conbox.hover(pausestatefun,playstatefun);
					}else{
						setinter();
						if(mouseoverstop) slider.hover( pausestatefun,playstatefun );
					}
			}
			else{ if( ismarq ){ opp?index--:index++; } playstate.addclass("pausestate"); }

			playstate.click(function(){  playstate.hasclass("pausestate")?playstatefun():pausestatefun()  });

			//titcell事件
			if(opts.trigger=="mouseover"){
				navobj.hover(function(){ var hoverind = navobj.index(this);  mst = settimeout(function(){  index=hoverind; doplay(); resetinter();  },opts.triggertime); }, function(){ cleartimeout(mst) });
			}else{ navobj.click(function(){ index=navobj.index(this); doplay(); resetinter(); })  }

			//前后按钮事件
			if (ismarq){
				
				nextbtn.mousedown(nexttrigger);
				prevbtn.mousedown(prevtrigger);
				//前后按钮长按10倍加速
				if (pnloop)
				{	
					var st;
					var mardown = function(){ st=settimeout(function(){ clearinterval(inter); setmarinter( intertime/10^0 ) },150) }
					var marup = function(){ cleartimeout(st); clearinterval(inter); setmarinter() }
					nextbtn.mousedown(mardown); nextbtn.mouseup(marup);
					prevbtn.mousedown(mardown); prevbtn.mouseup(marup);
				}
				//前后按钮mouseover事件
				if( opts.trigger=="mouseover"  ){ nextbtn.hover(nexttrigger,function(){}); prevbtn.hover(prevtrigger,function(){}); }
			}else{
				nextbtn.click(nexttrigger);
				prevbtn.click(prevtrigger);
			}

    	});//each end

	};//slide end

})(jquery);