(function($) {

$.fn.KinSlideshow = function(settings){

   settings = jQuery.extend({
     intervalTime : 5, //切换展示间隔时间 【单位：秒】
     moveSpeedTime : 400,//切换一张图片所需时间，【单位：毫秒】
     moveStyle:"left",//切换方向 【 left | right | up | down 】left:向左切换,right:向右切换,up:向上切换,down:向下切换
     mouseEvent:"mouseclick", //鼠标操作按钮事件,【mouseclick | mouseover】mouseclick：鼠标单击切换。mouseover：鼠标滑过切换。
     isHasTitleBar:true,//是否显示标题背景，
     titleBar:{titleBar_height:40,titleBar_bgColor:"#000000",titleBar_alpha:0.5},//标题背景样式，(isHasTitleBar = true 前提下启用)
     isHasTitleFont:true,//是否显示标题文字 
     titleFont:{TitleFont_size:12,TitleFont_color:"#FFFFFF",TitleFont_family:"Verdana",TitleFont_weight:"bold"},//标题文字样式，(isHasTitleFont = true 前提下启用)
     isHasBtn:true, //是否显示按钮
     btn:{btn_bgColor:"#666666",btn_bgHoverColor:"#CC0000",btn_fontColor:"#CCCCCC",btn_fontHoverColor:"#000000",btn_fontFamily:"Verdana",btn_borderColor:"#999999",btn_borderHoverColor:"#FF0000",btn_borderWidth:1,btn_bgAlpha:0.7} //按钮样式设置，(isHasBtn = true 前提下启用)
   },settings);
   var titleBar_Bak = {titleBar_height:40,titleBar_bgColor:"#000000",titleBar_alpha:0.5}
   var titleFont_Bak = {TitleFont_size:12,TitleFont_color:"#FFFFFF",TitleFont_family:"Verdana",TitleFont_weight:"bold"}
   var btn_Bak = {btn_bgColor:"#666666",btn_bgHoverColor:"#CC0000",btn_fontColor:"#CCCCCC",btn_fontHoverColor:"#000000",btn_fontFamily:"Verdana",btn_borderColor:"#999999",btn_borderHoverColor:"#FF0000",btn_borderWidth:1,btn_bgAlpha:0.7} //按钮样式设置，(isHasBtn = true 前提下启用)
   for (var key in titleBar_Bak){
    if(settings.titleBar[key] == undefined){
     settings.titleBar[key] = titleBar_Bak[key];
    }
   } 
   for (var key in titleFont_Bak){
    if(settings.titleFont[key] == undefined){
     settings.titleFont[key] = titleFont_Bak[key];
    }
   }
   for (var key in btn_Bak){
    if(settings.btn[key] == undefined){
     settings.btn[key] = btn_Bak[key];
    }
   }   
   
  var KinSlideshow_BoxObject = this;
  var KinSlideshow_BoxObjectSelector = $(KinSlideshow_BoxObject).selector;
  var KinSlideshow_DateArray = new Array();
  var KinSlideshow_imgaeLength = 0;
  var KinSlideshow_Size =new Array();
  var KinSlideshow_changeFlag = 0;
  var KinSlideshow_IntervalTime = settings.intervalTime;
  var KinSlideshow_setInterval;
  var KinSlideshow_firstMoveFlag = true;
  if(isNaN(KinSlideshow_IntervalTime) || KinSlideshow_IntervalTime <= 1){
   KinSlideshow_IntervalTime = 5;
  }
  if(settings.moveSpeedTime > 500){
   settings.moveSpeedTime = 500;
  }else if(settings.moveSpeedTime < 100){
   settings.moveSpeedTime = 100;
  }
  
  function KinSlideshow_initialize(){
   $(KinSlideshow_BoxObject).css({visibility:"hidden"});
   $(KinSlideshow_BoxObjectSelector+" a img").css({border:0});
   KinSlideshow_start();
   KinSlideshow_mousehover();
  };
   
     function KinSlideshow_start(){
   KinSlideshow_imgaeLength = $(KinSlideshow_BoxObjectSelector+" a").length;
   KinSlideshow_Size.push($(KinSlideshow_BoxObjectSelector+" a img").width());
   KinSlideshow_Size.push($(KinSlideshow_BoxObjectSelector+" a img").height());
   
  $(KinSlideshow_BoxObjectSelector+" a img").each(function(i){
   KinSlideshow_DateArray.push($(this).attr("alt"));  
  });
  $(KinSlideshow_BoxObjectSelector+" a").wrapAll("<div id='KinSlideshow_content'></div>");
  
     $("#KinSlideshow_content").clone().attr("id","KinSlideshow_contentClone").appendTo(KinSlideshow_BoxObject);
  KinSlideshow_setTitleBar();
  KinSlideshow_setTitleFont();
  KinSlideshow_setBtn();
  KinSlideshow_action();
  KinSlideshow_btnEvent(settings.mouseEvent);
  $(KinSlideshow_BoxObject).css({visibility:"visible"});
  };
  function KinSlideshow_setTitleBar(){
  $(KinSlideshow_BoxObject).css({width:KinSlideshow_Size[0],height:KinSlideshow_Size[1],overflow:"hidden",position:"relative"});
  $(KinSlideshow_BoxObject).append("<div class='KinSlideshow_titleBar'></div>");
  var getTitleBar_Height = settings.titleBar.titleBar_height;//获取面板高度
  
  if(isNaN(getTitleBar_Height)){
   getTitleBar_Height = 40;
  }else if(getTitleBar_Height < 25){
   getTitleBar_Height = 25;
  };
  
  $(KinSlideshow_BoxObjectSelector+" .KinSlideshow_titleBar").css({height:getTitleBar_Height,width:"100%",position:"absolute",bottom:0,left:0})
   if(settings.isHasTitleBar){
     $(KinSlideshow_BoxObjectSelector+" .KinSlideshow_titleBar").css({background:settings.titleBar.titleBar_bgColor,opacity:settings.titleBar.titleBar_alpha})  
   }
  };
  function KinSlideshow_setTitleFont(){
   if(settings.isHasTitleFont){
   $(KinSlideshow_BoxObjectSelector+" .KinSlideshow_titleBar").append("<h2 class='title' style='margin:3px 0 0 6px;padding:0;'></h2>"); 
   $(KinSlideshow_BoxObjectSelector+" .KinSlideshow_titleBar .title").css({fontSize:settings.titleFont.TitleFont_size,color:settings.titleFont.TitleFont_color,fontFamily:settings.titleFont.TitleFont_family,fontWeight:settings.titleFont.TitleFont_weight});
   setTiltFontShow(0);
   };
   
  };
  function KinSlideshow_setBtn(){
   if(settings.btn.btn_borderWidth > 2){settings.btn.btn_borderWidth = 2}
   if(settings.btn.btn_borderWidth < 0 || isNaN(settings.btn.btn_borderWidth)){settings.btn.btn_borderWidth = 0}
   if(settings.isHasBtn && KinSlideshow_imgaeLength >= 2){
    $(KinSlideshow_BoxObject).append("<div class='KinSlideshow_btnBox' style='position:absolute;right:10px;bottom:5px; z-index:100'></div>");
    var KinSlideshow_btnList = "";
    for(i=1;i<=KinSlideshow_imgaeLength;i++){
     KinSlideshow_btnList+="<li>"+i+"</li>";
    }
    KinSlideshow_btnList = "<ul id='btnlistID' style='margin:0;padding:0; overflow:hidden'>"+KinSlideshow_btnList+"</ul>";
    $(KinSlideshow_BoxObjectSelector+" .KinSlideshow_btnBox").append(KinSlideshow_btnList);
    $(KinSlideshow_BoxObjectSelector+" .KinSlideshow_btnBox #btnlistID li").css({listStyle:"none",float:"left",width:18,height:18,borderWidth:settings.btn.btn_borderWidth,borderColor:settings.btn.btn_borderColor,borderStyle:"solid",background:settings.btn.btn_bgColor,textAlign:"center",cursor:"pointer",marginLeft:3,fontSize:12,fontFamily:settings.btn.btn_fontFamily,lineHeight:"18px",opacity:settings.btn.btn_bgAlpha,color:settings.btn.btn_fontColor});
    $("#btnlistID li:eq(0)").css({background:settings.btn.btn_bgHoverColor,borderColor:settings.btn.btn_borderHoverColor,color:settings.btn.btn_fontHoverColor});
   };
  };
  function KinSlideshow_action(){
  switch(settings.moveStyle){
   case "left":  KinSlideshow_moveLeft(); break;
   case "right": KinSlideshow_moveRight();break;
   case "up":    KinSlideshow_moveUp();   break;
   case "down":  KinSlideshow_moveDown(); break;
   default:      settings.moveStyle = "left"; KinSlideshow_moveLeft();
  }  
  };
  function KinSlideshow_moveLeft(){
  $(KinSlideshow_BoxObjectSelector+" div:lt(2)").wrapAll("<div id='KinSlideshow_moveBox'></div>");
  $("#KinSlideshow_moveBox").css({width:KinSlideshow_Size[0],height:KinSlideshow_Size[1],overflow:"hidden",position:"relative"});
  $("#KinSlideshow_content").css({float:"left"});
  $("#KinSlideshow_contentClone").css({float:"left"});
  $(KinSlideshow_BoxObjectSelector+" #KinSlideshow_moveBox div").wrapAll("<div id='KinSlideshow_XposBox'></div>");
  $(KinSlideshow_BoxObjectSelector+" #KinSlideshow_XposBox").css({float:"left",width:"2000%"});
  
  KinSlideshow_setInterval = setInterval(function(){KinSlideshow_move(settings.moveStyle)},KinSlideshow_IntervalTime*1000+settings.moveSpeedTime);
  };
  function KinSlideshow_moveRight(){
  $(KinSlideshow_BoxObjectSelector+" div:lt(2)").wrapAll("<div id='KinSlideshow_moveBox'></div>");
  $("#KinSlideshow_moveBox").css({width:KinSlideshow_Size[0],height:KinSlideshow_Size[1],overflow:"hidden",position:"relative"});
  $("#KinSlideshow_content").css({float:"left"});
  $("#KinSlideshow_contentClone").css({float:"left"});
  $(KinSlideshow_BoxObjectSelector+" #KinSlideshow_moveBox div").wrapAll("<div id='KinSlideshow_XposBox'></div>");
  $(KinSlideshow_BoxObjectSelector+" #KinSlideshow_XposBox").css({float:"left",width:"2000%"});
  $("#KinSlideshow_contentClone").html("");
  $("#KinSlideshow_content a").wrap("<span></span>")
  $("#KinSlideshow_content a").each(function(i){
   $("#KinSlideshow_contentClone").prepend($("#KinSlideshow_content span:eq("+i+")").html());
  })
  
  $("#KinSlideshow_content").html($("#KinSlideshow_contentClone").html());
  var KinSlideshow_offsetLeft = (KinSlideshow_imgaeLength-1)*KinSlideshow_Size[0];
  $("#KinSlideshow_moveBox").scrollLeft(KinSlideshow_offsetLeft);
  KinSlideshow_setInterval = setInterval(function(){KinSlideshow_move(settings.moveStyle)},KinSlideshow_IntervalTime*1000+settings.moveSpeedTime);
  };  
  function KinSlideshow_moveUp(){
  $(KinSlideshow_BoxObjectSelector+" div:lt(2)").wrapAll("<div id='KinSlideshow_moveBox'></div>");//用div包裹
  $("#KinSlideshow_moveBox").css({width:KinSlideshow_Size[0],height:KinSlideshow_Size[1],overflow:"hidden",position:"relative"});
  
  $("#KinSlideshow_moveBox").animate({scrollTop: 0}, 1);
  KinSlideshow_setInterval = setInterval(function(){KinSlideshow_move(settings.moveStyle)},KinSlideshow_IntervalTime*1000+settings.moveSpeedTime);
  
  };  
  
  function KinSlideshow_moveDown(){
  $(KinSlideshow_BoxObjectSelector+" div:lt(2)").wrapAll("<div id='KinSlideshow_moveBox'></div>");//用div包裹
  $("#KinSlideshow_moveBox").css({width:KinSlideshow_Size[0],height:KinSlideshow_Size[1],overflow:"hidden",position:"relative"});
  $("#KinSlideshow_contentClone").html("");
  $("#KinSlideshow_content a").wrap("<span></span>")
  $("#KinSlideshow_content a").each(function(i){
   $("#KinSlideshow_contentClone").prepend($("#KinSlideshow_content span:eq("+i+")").html());
  })
  $("#KinSlideshow_content").html($("#KinSlideshow_contentClone").html());
  
  var KinSlideshow_offsetTop = (KinSlideshow_imgaeLength-1)*KinSlideshow_Size[1];
  $("#KinSlideshow_moveBox").animate({scrollTop: KinSlideshow_offsetTop}, 1);
  KinSlideshow_setInterval = setInterval(function(){KinSlideshow_move(settings.moveStyle)},KinSlideshow_IntervalTime*1000+settings.moveSpeedTime);
  };
 function KinSlideshow_move(style){
   
   switch(style){
    case "left":
     if(KinSlideshow_changeFlag >= KinSlideshow_imgaeLength){
      KinSlideshow_changeFlag = 0;
      $("#KinSlideshow_moveBox").scrollLeft(0);
      $("#KinSlideshow_moveBox").animate({scrollLeft:KinSlideshow_Size[0]}, settings.moveSpeedTime);
     }else{
      sp =(KinSlideshow_changeFlag+1)*KinSlideshow_Size[0];
      if ($("#KinSlideshow_moveBox").is(':animated')){ 
       $("#KinSlideshow_moveBox").stop();
       $("#KinSlideshow_moveBox").animate({scrollLeft: sp}, settings.moveSpeedTime);
      }else{
       $("#KinSlideshow_moveBox").animate({scrollLeft: sp}, settings.moveSpeedTime);
      }
     }
     setTiltFontShow(KinSlideshow_changeFlag+1);
     break;
    case "right":
     var KinSlideshow_offsetLeft = (KinSlideshow_imgaeLength-1)*KinSlideshow_Size[0];
     if(KinSlideshow_changeFlag >= KinSlideshow_imgaeLength){
      KinSlideshow_changeFlag = 0;
      $("#KinSlideshow_moveBox").scrollLeft(KinSlideshow_offsetLeft+KinSlideshow_Size[0]);
      $("#KinSlideshow_moveBox").animate({scrollLeft:KinSlideshow_offsetLeft}, settings.moveSpeedTime);
     }else{
      if(KinSlideshow_firstMoveFlag){
       KinSlideshow_changeFlag++;
       KinSlideshow_firstMoveFlag = false;
      }
      sp =KinSlideshow_offsetLeft-(KinSlideshow_changeFlag*KinSlideshow_Size[0]);
      if ($("#KinSlideshow_moveBox").is(':animated')){ 
       $("#KinSlideshow_moveBox").stop();
       $("#KinSlideshow_moveBox").animate({scrollLeft: sp}, settings.moveSpeedTime);
      }else{
       $("#KinSlideshow_moveBox").animate({scrollLeft: sp}, settings.moveSpeedTime);
      }
     }
     setTiltFontShow(KinSlideshow_changeFlag);
     break;
    case "up":
     if(KinSlideshow_changeFlag >= KinSlideshow_imgaeLength){
      KinSlideshow_changeFlag = 0;
      $("#KinSlideshow_moveBox").scrollTop(0);
      $("#KinSlideshow_moveBox").animate({scrollTop:KinSlideshow_Size[1]}, settings.moveSpeedTime);
     }else{
      sp =(KinSlideshow_changeFlag+1)*KinSlideshow_Size[1];
      if ($("#KinSlideshow_moveBox").is(':animated')){ 
       $("#KinSlideshow_moveBox").stop();
       $("#KinSlideshow_moveBox").animate({scrollTop: sp}, settings.moveSpeedTime);
      }else{
       $("#KinSlideshow_moveBox").animate({scrollTop: sp}, settings.moveSpeedTime);
      }
     }
     setTiltFontShow(KinSlideshow_changeFlag+1);
     break;
    case "down":
     var KinSlideshow_offsetLeft = (KinSlideshow_imgaeLength-1)*KinSlideshow_Size[1];
     if(KinSlideshow_changeFlag >= KinSlideshow_imgaeLength){
      KinSlideshow_changeFlag = 0;
      $("#KinSlideshow_moveBox").scrollTop(KinSlideshow_offsetLeft+KinSlideshow_Size[1]);
      $("#KinSlideshow_moveBox").animate({scrollTop:KinSlideshow_offsetLeft}, settings.moveSpeedTime);
     }else{
      if(KinSlideshow_firstMoveFlag){
       KinSlideshow_changeFlag++;
       KinSlideshow_firstMoveFlag = false;
      }
      sp =KinSlideshow_offsetLeft-(KinSlideshow_changeFlag*KinSlideshow_Size[1]);
      if ($("#KinSlideshow_moveBox").is(':animated')){ 
       $("#KinSlideshow_moveBox").stop();
       $("#KinSlideshow_moveBox").animate({scrollTop: sp}, settings.moveSpeedTime);
      }else{
       $("#KinSlideshow_moveBox").animate({scrollTop: sp}, settings.moveSpeedTime);
      }
     }
     setTiltFontShow(KinSlideshow_changeFlag);
     break;
   }
   
   KinSlideshow_changeFlag++;
 }  
  
  function setTiltFontShow(index){
   if(index == KinSlideshow_imgaeLength){index = 0};
   if(settings.isHasTitleFont){
   $(KinSlideshow_BoxObjectSelector+" .KinSlideshow_titleBar h2").html(KinSlideshow_DateArray[index]);
   };
  $("#btnlistID li").each(function(i){
   if(i == index){
    $(this).css({background:settings.btn.btn_bgHoverColor,borderColor:settings.btn.btn_borderHoverColor,color:settings.btn.btn_fontHoverColor});      
   }else{
    $(this).css({background:settings.btn.btn_bgColor,borderColor:settings.btn.btn_borderColor,color:settings.btn.btn_fontColor});      
   }
   })   
  };
 
 function KinSlideshow_btnEvent(Event){
  switch(Event){
   case "mouseover" : KinSlideshow_btnMouseover(); break;
   case "mouseclick" : KinSlideshow_btnMouseclick(); break;   
   default : KinSlideshow_btnMouseclick();//如果传值错误默认使用mouseclick切换
  }
 };
 
 function KinSlideshow_btnMouseover(){
  $("#btnlistID li").mouseover(function(){
   var curLiIndex = $("#btnlistID li").index($(this)); 
     switch(settings.moveStyle){
    case  "left" :
     KinSlideshow_changeFlag = curLiIndex-1; break;
    case  "right" :
     if(KinSlideshow_firstMoveFlag){
      KinSlideshow_changeFlag = curLiIndex-1; break;
     }else{
      KinSlideshow_changeFlag = curLiIndex; break;
     }
    case  "up" :
     KinSlideshow_changeFlag = curLiIndex-1; break;
    case  "down" :
     if(KinSlideshow_firstMoveFlag){
      KinSlideshow_changeFlag = curLiIndex-1; break;
     }else{
      KinSlideshow_changeFlag = curLiIndex; break;
     }
   }
   KinSlideshow_move(settings.moveStyle);
   $("#btnlistID li").each(function(i){
    if(i ==curLiIndex){
     $(this).css({background:settings.btn.btn_bgHoverColor,borderColor:settings.btn.btn_borderHoverColor,color:settings.btn.btn_fontHoverColor});      
    }else{
     $(this).css({background:settings.btn.btn_bgColor,borderColor:settings.btn.btn_borderColor,color:settings.btn.btn_fontColor});      
    }
   })
  })
   
 };
 function KinSlideshow_btnMouseclick(){
  $("#btnlistID li").click(function(){
   var curLiIndex = $("#btnlistID li").index($(this)); 
   switch(settings.moveStyle){
    case  "left" :
     KinSlideshow_changeFlag = curLiIndex-1; break;
    case  "right" :
     if(KinSlideshow_firstMoveFlag){
      KinSlideshow_changeFlag = curLiIndex-1; break;
     }else{
      KinSlideshow_changeFlag = curLiIndex; break;
     }
    case  "up" :
     KinSlideshow_changeFlag = curLiIndex-1; break;
    case  "down" :
     if(KinSlideshow_firstMoveFlag){
      KinSlideshow_changeFlag = curLiIndex-1; break;
     }else{
      KinSlideshow_changeFlag = curLiIndex; break;
     }     
    
   }
   KinSlideshow_move(settings.moveStyle);
   $("#btnlistID li").each(function(i){
    if(i ==curLiIndex){
     $(this).css({background:settings.btn.btn_bgHoverColor,borderColor:settings.btn.btn_borderHoverColor,color:settings.btn.btn_fontHoverColor});      
    }else{
     $(this).css({background:settings.btn.btn_bgColor,borderColor:settings.btn.btn_borderColor,color:settings.btn.btn_fontColor});      
    }
   })
  })
   
 }; 
 function KinSlideshow_mousehover(){
   $("#btnlistID li").mouseover(function(){
    clearInterval(KinSlideshow_setInterval); 
   })
   $("#btnlistID li").mouseout(function(){
    KinSlideshow_setInterval = setInterval(function(){KinSlideshow_move(settings.moveStyle)},KinSlideshow_IntervalTime*1000+settings.moveSpeedTime);
   })
 };
 
 return KinSlideshow_initialize();
};
 })(jQuery);

KinSlideshow 说明：

1.使用很简单 方便
javascript:
  $(function(){
      $("#KinSlideshow").KinSlideshow();
  })
HTML:
  <div id="KinSlideshow" >
      <a href="http://www.qq1.com" target="_blank"><img src="images/1.jpg" alt="这是标题一" /></a>
      <a href="http://www.qq2.com" target="_blank"><img src="images/2.jpg" alt="这是标题二" /></a>
      <a href="http://www.qq3.com" target="_blank"><img src="images/3.jpg" alt="这是标题三" /></a>
      <a href="http://www.qq4.com" target="_blank"><img src="images/4.jpg" alt="这是标题四" /></a>
      <a href="http://www.qq5.com" target="_blank"><img src="images/5.jpg" alt="这是标题五" /></a>
      <a href="http://www.qq6.com" target="_blank"><img src="images/6.jpg" alt="这是标题六" /></a>
  </div>

2. 可以 自定义 参数，无缝切换（切换方向，切换方式，切换时间，外观样式等等......）
javascript:
    $(function(){
        $("#KinSlideshow").KinSlideshow({
                moveStyle:"down",         //设置切换方向为向下 [默认向左切换]
                intervalTime:8,           //设置间隔时间为8秒  [默认为5秒]
                mouseEvent:"mouseover"        //设置鼠标事件为“鼠标滑过切换”  [默认鼠标点击时切换]
                titleFont:{TitleFont_size:14,TitleFont_color:"#FF0000"} //设置标题文字大小为14px，颜色：#FF0000
        });
    })

* jQuery. KinSlideshow幻灯片插件，基本能满足你在网页上使用幻灯片(焦点图)效果。兼容IE6/IE7/IE8/IE9,FireFox,Chrome*,Opera。