(function($){
	$.fn.slide=function(options){
		$.fn.slide.defaults={
		effect:"fade", 
		autoplay:false, 
		delaytime:500, 
		intertime:2500,
		triggertime:150,
		defaultindex:0,
		titcell:".hd 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:"linear",
		startfun:null,
		endfun:null,
		switchload:null
		};

		return this.each(function() {
			var opts = $.extend({},$.fn.slide.defaults,options);
			var effect = opts.effect;
			var prevbtn = $(opts.prevcell, $(this));
			var nextbtn = $(opts.nextcell, $(this));
			var pagestate = $(opts.pagestatecell, $(this));
			var navobj = $(opts.titcell, $(this));//导航子元素结合
			var navobjsize = navobj.size();
			var conbox = $(opts.maincell , $(this));//内容元素父层对象
			var conboxsize=conbox.children().size();
			var sload=opts.switchload;
			if(opts.targetcell!=null){ var tarobj = $(opts.targetcell, $(this)) };

			/*字符串转换为数字*/
			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 loop = (opts.pnloop=="false"||opts.pnloop==false)?false:true;

			var slideh=0;
			var slidew=0;
			var selfw=0;
			var selfh=0;
			var easing=opts.easing;
			var inter=null;//setinterval名称 
			var oldindex = index;
			
			//处理分页
			if( navobjsize==0 )navobjsize=conboxsize;
			if( autopage ){
				var temps = conboxsize-vis;
				navobjsize=1+parseint(temps%scroll!=0?(temps/scroll+1):(temps/scroll)); 
				if(navobjsize<=0)navobjsize=1;
				navobj.html(""); 
				for( var i=0; i<navobjsize; i++ ){ navobj.append("<li>"+(i+1)+"</li>") }
				var navobj = $("li", navobj);//重置导航子元素对象
			}

			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);  }
			});

			if(conboxsize>=vis){ //当内容个数少于可视个数，不执行效果。
				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( { "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,"position":"relative","overflow":"hidden","padding":"0","margin":"0"}).children().css( {"float":"left","width":selfw} ); break;
					case "leftloop":
					case "leftmarquee":
						conbox.children().clone().appendto(conbox).clone().prependto(conbox); 
						conbox.wrap('<div class="tempwrap" style="overflow:hidden; position:relative; width:'+vis*slidew+'px"></div>').css( { "width":conboxsize*slidew*3,"position":"relative","overflow":"hidden","padding":"0","margin":"0","left":-conboxsize*slidew}).children().css( {"float":"left","width":selfw}  ); break;
					case "toploop":
					case "topmarquee":
						conbox.children().clone().appendto(conbox).clone().prependto(conbox); 
						conbox.wrap('<div class="tempwrap" style="overflow:hidden; position:relative; height:'+vis*slideh+'px"></div>').css( { "height":conboxsize*slideh*3,"position":"relative","padding":"0","margin":"0","top":-conboxsize*slideh}).children().css( {"height":selfh} ); break;
				}
			}

			var dostartfun=function(){ if ( $.isfunction( opts.startfun) ){ opts.startfun( index,navobjsize ); } };
			var doendfun=function(){ if ( $.isfunction( opts.endfun ) ){ opts.endfun( index,navobjsize ); } };
			var doswitchload=function(objs){ 
						objs.eq(index).find("img").each(function(){ 
						if ( typeof($(this).attr(sload))!="undefined"){ $(this).attr("src",$(this).attr(sload)).removeattr(sload) }
					})
				}

			//效果函数
			var doplay=function(isfirst){
				
				if( oldindex==index && !isfirst && effect!="leftmarquee" && effect!="topmarquee"  ) return; // 当前页状态不触发效果

				switch(effect)
				{
					case "fade": case "fold": case "top": case "left": if ( index >= navobjsize) { index = 0; } else if( index < 0) { index = navobjsize-1; } break;
					case "leftmarquee":case "topmarquee": if ( index>= 1) { index=1; } else if( index<=0) { index = 0; } break;
					case "leftloop": case "toploop":
						var tempnum = index - oldindex; 
						if( navobjsize>2 && tempnum==-(navobjsize-1) ) tempnum=1;
						if( navobjsize>2 && tempnum==(navobjsize-1) ) tempnum=-1;
						var scrollnum = math.abs( tempnum*scroll );
						if ( index >= navobjsize) { index = 0; } else if( index < 0) { index = navobjsize-1; }
					break;
				}

				dostartfun();

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

				//处理targetcell
				if(tarobj){ 
					if( sload!=null ){ doswitchload( tarobj ) }
					tarobj.hide().eq(index).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":
							if(tempnum<0 ){
									conbox.stop(true,true).animate({"left":-(conboxsize-scrollnum )*slidew},delaytime,easing,function(){
									for(var i=0;i<scrollnum;i++){ conbox.children().last().prependto(conbox); }
									conbox.css("left",-conboxsize*slidew);
									doendfun();
								});
							}
							else{
								conbox.stop(true,true).animate({"left":-( conboxsize + scrollnum)*slidew},delaytime,easing,function(){
									for(var i=0;i<scrollnum;i++){ conbox.children().first().appendto(conbox); }
									conbox.css("left",-conboxsize*slidew);
									doendfun();
								});
							}break;// leftloop end

						case "toploop":
							if(tempnum<0 ){
									conbox.stop(true,true).animate({"top":-(conboxsize-scrollnum )*slideh},delaytime,easing,function(){
									for(var i=0;i<scrollnum;i++){ conbox.children().last().prependto(conbox); }
									conbox.css("top",-conboxsize*slideh);
									doendfun();
								});
							}
							else{
								conbox.stop(true,true).animate({"top":-( conboxsize + scrollnum)*slideh},delaytime,easing,function(){
									for(var i=0;i<scrollnum;i++){ conbox.children().first().appendto(conbox); }
									conbox.css("top",-conboxsize*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){ for(var i=0;i<conboxsize;i++){ conbox.children().last().prependto(conbox); }conbox.css("left",-conboxsize*slidew);}
									});
							}
							else{
									conbox.animate({"left":--templeft},0,function(){
										if(  conbox.css("left").replace("px","")<= -conboxsize*slidew*2){ for(var i=0;i<conboxsize;i++){ conbox.children().first().appendto(conbox); }conbox.css("left",-conboxsize*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){ for(var i=0;i<conboxsize;i++){ conbox.children().last().prependto(conbox); }conbox.css("top",-conboxsize*slideh);}
										});
								}
								else{
										conbox.animate({"top":--temptop},0,function(){
											if( conbox.css("top").replace("px","")<= -conboxsize*slideh*2){ for(var i=0;i<conboxsize;i++){ conbox.children().first().appendto(conbox); }conbox.css("top",-conboxsize*slideh);}
										});
								}break;// topmarquee end


					}//switch end
				}


					navobj.removeclass(opts.titonclassname).eq(index).addclass(opts.titonclassname);
					oldindex=index;
					if( loop==false ){ //loop控制是否继续循环
						nextbtn.removeclass("nextstop"); prevbtn.removeclass("prevstop");
						if (index==0 ){ prevbtn.addclass("prevstop"); }
						else if (index==navobjsize-1 ){ nextbtn.addclass("nextstop");  }
					}
					pagestate.html( "<span>"+(index+1)+"</span>/"+navobjsize);
			};
			//初始化执行
			doplay(true);

			//自动播放
			if (autoplay) {
					if( effect=="leftmarquee" || effect=="topmarquee"  ){
						if(opp){ index-- }else{ index++ } inter = setinterval(doplay, intertime);
						conbox.hover(function(){if(autoplay){clearinterval(inter); }},function(){if(autoplay){clearinterval(inter);inter = setinterval(doplay, intertime);}});
					}else{
						 inter=setinterval(function(){  if(opp){ index-- }else{ index++ } ; doplay() }, intertime); 
						$(this).hover(function(){if(autoplay){clearinterval(inter); }},function(){if(autoplay){clearinterval(inter); inter=setinterval(function(){if(opp){ index-- }else{ index++ }; doplay() }, intertime); }});
					}
			}

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

			 nextbtn.click(function(){ if ( loop==true || index!=navobjsize-1 ){ index++; doplay(); }  });  
			 prevbtn.click(function(){ if ( loop==true || index!=0 ){ index--; doplay(); } }); 


    	});//each end

	};//slide end

})(jquery);