在线等——关于实现单选按钮的单击事件

var ra=document.getElementById('按钮名称').value;

解决方案 »

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>test</title>
<script type="text/javascript">
function a() {  if (f.test[0].checked == true) {
    document.getElementById("c1").style.display="none";
    document.getElementById("c2").style.display="block";
    document.getElementById("c3").style.display="none";
  }
  if (f.test[1].checked == true) {
    document.getElementById("c1").style.display="none";
    document.getElementById("c2").style.display="none";
    document.getElementById("c3").style.display="block";
  }}
</script>
</head>
<body>
<form name="f">
<input type="radio" name="test" onclick="a()" />
显示A
<input type="radio" name="test" onclick="a()" />显示B
</form>
<table width="200" border="1" id="c1">
<tr>
<td colspan="3" align="center">默认表格</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
<table width="200" border="1" id="c2" style="display:none">
<tr>
<td colspan="3" align="center">表格A</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
<table width="200" border="1" id="c3" style="display:none">
<tr>
<td colspan="3" align="center">表格B</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>00</title>
<script>
</script>
</head><body><INPUT TYPE="radio" id="btn" value="123" onclick="alert(this.value)">123</body>
</html>
调用了这个alert(this.value)值在怎么调用啊
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>00</title>
<script>
/*在这调用*****************/
function Nowcheck(obj){
alert(obj.value);}
</script>
</head>
<body>
<INPUT TYPE="radio" id="btn" value="123" onclick="Nowcheck(this)"><label for=123>123</label>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>无标题页</title>
    <script>
    function show()
    {
        obj = event.srcElement;
        alert(obj.value);
    }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <input id="Radio1" type="radio" value="呵呵" name="r" onclick="show()"/>
        <input id="Radio2" type="radio" value="哈哈" name="r" onclick="show()"/>
        </div>
    </form>
</body>
</html>