var t=0;
var flag=true;
var interval=0;
var bl=true;
var _big0=new Image();
var _big1=new Image();
var _big2=new Image();
var loadFlag=false;
$(function(){
    //装机时默认播放
    $("#def_title").addClass("loader");  
    _big0.src="images/default/big0.jpg";   
    _big1.src="images/default/big1.jpg";   
    _big2.src="images/default/big2.jpg";  
    
    $(_big0).click( function () {location.href=$("#hfLink0").val();});
    $(_big1).click( function () {location.href=$("#hfLink1").val();});
    $(_big2).click( function () {location.href=$("#hfLink2").val();});
    
    $(_big2).load(function(){
        loadFlag=true;
         $("#def_title").removeClass("loader");
//         $("#def_title").css({
//            background:'url(images/what/1.png)'
//         });
         $(_big0).fadeOut();     
       $("#def_title").append(_big0);           
         _big0.width=1000;
         _big0.height=350;
         $(_big0).fadeIn(500);
    });  
       interval= window.setInterval("animate('next')",5000);    
  
});
function animate(dir){
    if(flag&&loadFlag)
    {
        //加锁
        flag=false;
        //当bl为false时候不自动
        if(bl)
        {
          window.clearInterval(interval);
          interval= window.setInterval("animate('next')",4000); 
        }  
        //分析点哪个按钮
  	    switch(dir){
    	    case "prev":              
    	      t = ((t-1)<0) ? 1 : t-1;		
    	      break;
    	    case "next":    	    
    	      t = ((t+1)>=3) ? 0: t+1;		
    	      break;
    	    default: t=dir;    	 
    	      break;
  	    } 
  	    //小按钮
  	    $(".imgHover").removeClass("imgHover").addClass("imglink");
        $("#img"+t).removeClass("imglink").addClass("imgHover");
        var w=$("#silder li").width();
        $("#def_title img").remove();     
        
       switch(t){
//            case 0:$(_big0).css({display:"none"});$("#def_title").append(_big0);_big0.width=815;_big0.height=366;$(_big0).fadeIn(600);break;
//            case 1:$(_big1).css({display:"none"});$("#def_title").append(_big1);_big1.width=815;_big1.height=366;$(_big1).fadeIn(600);break;
//            case 2:$(_big2).css({display:"none"});$("#def_title").append(_big2);_big2.width=815;_big2.height=366;$(_big2).fadeIn(600);break;
              case 0:  _big0.width=1000;
             _big0.height=350;$(_big0).css({opacity:0});$("#def_title").append(_big0);$(_big0).animate({opacity:100},12000);
              break;
               case 1: _big1.width=1000;
             _big1.height=350;$(_big1).css({opacity:0});$("#def_title").append(_big1);$(_big1).animate({opacity:100},12000);
              break;
               case 2: _big2.width=1000;
             _big2.height=350;$(_big2).css({opacity:0});$("#def_title").append(_big2);$(_big2).animate({opacity:100},12000);
              break;    
//            case 3: _big3.width=983;
//         _big3.height=266;$(_big3).css({opacity:0});$("#def_title").append(_big3);$(_big3).animate({opacity:100},16000);
//          break;   
//            case 4: _big4.width=983;
//         _big4.height=266;$(_big4).css({opacity:0});$("#def_title").append(_big4);$(_big4).animate({opacity:100},16000);
//          break;   
//            case 5: _big5.width=983;
//         _big5.height=266;$(_big5).css({opacity:0});$("#def_title").append(_big5);$(_big5).animate({opacity:100},16000);
//          break;       
       }
	    //解锁	   
	    flag=true;
    }
}
function manage(obj)
{
    //控制关闭---播放
    var div= $(obj);
    if(div.attr("title")=="start")
    {
        bl=false;
         window.clearInterval(interval);
        div.attr("title","stop").css({background:"url(images/default/.jpg)"});       
    }
    else
    {
        bl=true;
       div.attr("title","start").css({background:"url(images/default/.jpg)"}); 
        interval= window.setInterval("animate('next')",4000);      
    }
    
}