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);