var lag = "";//最大数
var nownumb = 1;//当前数
var start = function()
{
	lag = srcarray.length;
	createspan(); //创建点击数字
	begin();
}
var begin = function(){	
    if(nownumb>lag) nownumb = 1;
	change(nownumb);
	window.setTimeout(begin,5000) 
	nownumb++;
}
var change = function(num,shtml){
	
	 num = parseInt(num);
   if($(".choose").length) $(".choose").removeClass().addClass("unchoose");	
//   var xx = parseInt(Math.random(4)*10);
//	 if (xx<3) $("#imgarea").find("img").attr("src",srcarray[num-1]).hide().animate({Height: 'show',opacity: 'show'}, 1000);
//	 else if(xx>2&&xx<6) $("#imgarea").find("img").attr("src",srcarray[num-1]).hide().slideToggle(1000);
//	 else if(xx>5&&xx<7) $("#imgarea").find("img").attr("src",srcarray[num-1]).hide().show(1000);
//	 else 
//	 $("#imgarea").find("img").attr("src",srcarray[num-1]).hide().animate({Height: 'toggle',opacity: 'toggle'},1000);
     $("#imgarea").find("img").attr("src",srcarray[num-1]).hide().show();
	 $("#imgarea").find("img").attr('url',urlarray[num-1]).attr("alt",titlearray[num-1]);
     //$("#newtitle").html(titlearray[num-1])
	 //$("#imgarea").find("a").attr("href",urlarray[num-1]);
	 $("#changearea").find("span:eq("+(num-1)+")").removeClass().addClass("choose");
	 shtml?nownumb = num+1:nownumb = num;
}
var findurl = function(obj)
{
	openwindow(obj.url)
}
var createspan = function()
{
  
   if(lag>0){
	   var html = ""
	   for(var i=1;i<lag+1;i++)
	   {
		     html += '<span class="unchoose" onClick="change('+i+','+i+')">'+i+'</span>'
	   }
	  $("#changearea").append(html);   
   }
}