function GD(t)
{      
    var selectedItem;
    var selectedBtn;
    var playID;
    var selectedIndex;  
    $.ajax({
		   type: 'post',
		   url: '../../../ajax/GetBySql.ashx',

		   data:{SQLstr:" select top 14 page,path,time,content from MPhoto where ClassId='新闻图片' ORDER BY id desc"},
		   dataType: 'json',
		   success: function(data)
		   {		  
		 	 initPicPlayer(data,t.css('width').split('px')[0],t.css('height').split('px')[0]);              		       
		   },//取数据成功才执行
		   error: function()
		   { 
		    $(t).empty();
		   }
		 });	
         		

    function initPicPlayer(pics,w,h)
    {            
        var img=document.createElement('div');
        $(img).css("height","85%");
        t.append(img);     
        for(var i=0;i<pics.length;i++)
        {
         $(img).append('<div  id="img'+i+'" class="pimg"><a href="'+pics[i].path+'" target="_blank"><img   src="'+pics[i].page+'" /></br><div class="title">'+pics[i].content+'</div></a></div>');
         }   
         $(".pimg").css("display","none");
    	var btns=document.createElement('div');
    	$(btns).addClass("btns");
        t.append(btns);     
        
        for(var i=0;i<pics.length;i++)
        {
            $(btns).append('<span id="pbt'+i+'"  class="pbt">&nbsp;'+(i+1)+'&nbsp;</span>');           
            $('#pbt'+i).data('index',i);
            $('#pbt'+i).click(
                function(event)
                {  
                  setSelectedItem($(this).data('index'));
                });
        }
        
        
        
        $(btns).append('&nbsp;');
       
        setSelectedItem(0);
        function setSelectedItem(index)
        {
          $(".pimg").css("display","none");
          $("#img"+index).css("display","block");
            
            selectedIndex = index;
            clearInterval(playID);					
            if(selectedItem)$(selectedItem).hide();
            selectedItem = $('#img'+index);
         
            $(selectedItem).show();
            $(selectedItem).fadeIn('slow');
            $("#img"+index,selectedItem)
            if(selectedBtn)
            {
                  $(selectedBtn).css('selectbt');
            }
            selectedBtn = $('#pbt'+index);
            
            $(selectedBtn).css('selectbt');
            playID = setInterval(function()
            {
                var index = selectedIndex+1;
                if(index > pics.length-1) index=0;
                setSelectedItem(index);
            },pics[index].time);
        }
    }	
    
}

function LRGD()
{
 var speed3=25//速度数值越大速度越慢
    $("#demo2").html($("#demo1").html());

    var Marquee=function (){
        if(demo2.offsetWidth-demo.scrollLeft<=0)
        demo.scrollLeft-=demo1.offsetWidth
        else{
            demo.scrollLeft++;
        }
    }
    var MyMar=setInterval(Marquee,speed3)
//    demo.hover(function(){ clearInterval(MyMar)},function() {   MyMar=setInterval(Marquee,speed3)});
 
}