php+lottery.js实现九宫格抽奖功能

<script type="text/javascript" src="js/lottery.js"></script>

function start_lottery(){ 
   if(flag){ 
     //alert('正在抽奖，请等待抽奖结果！'); 
     //return false; 
     return void(0); 
   } 
  flag=true; 
   index = 1;       //当前选中对象的位置 
   fast = rand(3,6);   //在哪个位置开始加速 
   cycle = rand(3,5);   //转动多少圈 
   speed = 300;      //开始时速度 
   $.ajax({ 
     url: 'lottery.php', 
     type: "post", 
     data:null, 
     dataType: "json", 
     timeout: 20000, 
     cache: false, 
     beforeSend: function(){// 提交之前 
     }, 
     error: function(){//出错 
       flag=false; 
     }, 
     success: function(res){//成功 
       if(typeof(res.award_id)!='undefined'){ 
         lucky = res.award_id;  //中奖号码 
         award = res.award_name; //奖品名称 
         show_lottery(); 
       }else{ 
         flag=false; 
         alert(res.err); 
       } 
     } 
   }); 
 }

//奖品配置 
 $award = array( 
   // 奖品ID => array('奖品名称',概率) 
   1 => array('悟空公仔',0.1), 
   2 => array('小乖虎公仔',0.1), 
   3 => array('神秘大礼包',0.1), 
   4 => array('智能游戏手柄',0.1), 
   5 => array('小角鹿公仔',0.1), 
   6 => array('豆蛙抱枕',0.1), 
   7 => array('游戏耳机',0.2), 
   8 => array('雷蛇键盘',0.2), 
 ); 
 $r =rand(1,100);