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 _big3=new Image();
var _big4=new Image();
var loadFlag=false;
$(function(){
    //装机时默认播放
    $("#def_title").addClass("loader");  
    _big0.src="images/Home/AK&CO HOME vo.28-1.jpg";   
    _big1.src="images/Home/AK&CO HOME vo.28-5.jpg";   
    _big2.src="images/Home/AK&CO HOME vo.28-3.jpg";  
    _big3.src="images/Home/AK&CO HOME vo.28-4.jpg";  
    _big4.src="images/Home/AK&CO HOME vo.28-2.jpg";    
    
    $(_big4).load(function(){
        loadFlag=true;
         $("#def_title").removeClass("loader");        
         $(_big0).fadeOut();     
         $("#def_title").append(_big0);           
         _big0.width=900;
         _big0.height=338;
         $(_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) ? 4 : t-1;		
    	      break;
    	    case "next":    	    
    	      t = ((t+1)>=5) ? 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();
        $("#def_title img").remove();     
       switch(t){
          case 0:  _big0.width=900;
         _big0.height=338;$(_big0).css({opacity:0});$("#def_title").append(_big0);$(_big0).animate({opacity:100},16000);
          break;
           case 1:
             _big1.width=900;
            _big1.height=338;$(_big1).css({opacity:0});
            var a= $("<a href='http://www.eacsoft.com' target='_blank'></a>");
            a.append(_big1);     
            $("#def_title").append(a);
            $(_big1).animate({opacity:100},16000);
          break;
           case 2: 
            _big2.width=900;
            _big2.height=338;$(_big2).css({opacity:0});               
            $("#def_title").append(_big2);
            $(_big2).animate({opacity:100},16000);
          break;   
           case 3: _big3.width=900;
         _big3.height=338;$(_big3).css({opacity:0});$("#def_title").append(_big3);$(_big3).animate({opacity:100},16000);
          break;   
           case 4: _big4.width=900;
         _big4.height=338;$(_big4).css({opacity:0});$("#def_title").append(_big4);$(_big4).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/start.jpg)"});       
    }
    else
    {
        bl=true;
       div.attr("title","start").css({background:"url(images/default/stop.jpg)"}); 
        interval= window.setInterval("animate('next')",4000);      
    }
    
}