1 <html>
2 <head>
3
4 <script language="javascript">
5 var checkValue = "";
6 var radios = document.getElementsByName("test");
7 function nowChecked(){
8 for(var i=0;i<radios.length;i++){
9 if(radios[i].checked){
10 checkValue = radios[i].value;
11 }
12 }
13 }
14 function change(n){
15
16 //alert("checkValue:"+checkValue+" n:"+n);
17 if(checkValue != n){
18
19 if(confirm("确认修改？")){
20 radios[n].checked =true;
21 nowChecked();
22 }else{
23 radios[checkValue].checked = true;
24 }
25 }
26 }
27 </script>
28 </head>
29
30 <body onload="nowChecked()">
31 <input type="radio" name="test" value="0" checked="checked" onclick="change(0)"/>是
32 <input type="radio" name="test" value="1" onclick="change(1)"/>否
33 </body>
34
35 </html>
