title>抽奖活动</title>
</head>
<script type="text/javascript">
function update_number(){
var count=50;
var original=new Array;//原始数组
var resulte='';
//给原始数组original赋值
for (var i=0;i<count;i++){
original[i]=i+1;
}
for (i=0;i<10;i++){
var index=Math.floor(Math.random()*original.length); //随机取一个位置
resulte = resulte+original[index]+" , ";
//document.write(index+" , "); //打印
original.splice(index,1)
}
var select_value=document.getElementById("jieguo");
select_value.value = resulte.substring(0,resulte.length-2);
}
</script>
<style>
body{
font-family:Arial, Helvetica, sans-serif;
}
</style>
<body>
<div style="margin:0 auto;background:url(images/bg.jpg) no-repeat center center; width:900px; height:570px; position:relative;">
<textarea id='jieguo' style="position:absolute;font-size:30px; font-weight:bold;width:558px;height:195px;left:160px;top:170px;vertical-align:middle;text-align:center;"></textarea>
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