<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script type="text/javascript">
function $(id){return document.getElementById(id);}
function number(){
var num=new Array();
for(var i=0; i<8; i++)
num[i]=Math.floor(Math.random()*100);
return num.join(" ");
}
function show(n){
var select_num=$("selectnum").length;
for(var j=0; j<n; j++){
var tex=document.createTextNode(number());
var opt=document.createElement("option");
opt.appendChild(tex);
$("selectnum").appendChild(opt);
}
$("selectnum").selectedIndex=select_num;
}
function delect1(){
var select_num=$("selectnum").selectedIndex;
if(select_num!=-1)
$("selectnum").remove(select_num);
else
alert("请选择！")
}
function delect2(){
var len=$("selectnum").length;
for(len;len>0;len--)
$("selectnum").remove(number());
}
</script>
</head>
<body>
<div id="all">
<img src="../1212/ico_7l.gif" >
<form name="" enctype="" action="" method="">
<table border="0" cellspacing="" cellpadding="" align="center" >
<caption>
<h2>简易福彩投注程序</h2>
</caption>
<tr>
<td><input type="button" name="" id="" value="一" οnclick="show(1)"/></td>
<td rowspan="3">
<select id="selectnum" name="" size="6" style="width: 250px;">
</select>
</td>
<td><input type="button" name="" id="" value="删除" οnclick="delect1()"/></td>
</tr>
<tr>
<td><input type="button" name="" id="" value="五" οnclick="show(5)"/></td>
</tr>
<tr>
<td><input type="button" name="" id="" value="十" οnclick="show(10)"/></td>
<td><input type="button" name="" id="" value="全部删除" οnclick="delect2()"/></td>
</tr>
</table>
</form>
</div>
</body>
</html>
扫一扫
评论
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
查看更多评论
添加红包
