function getRads(groupname){ var radlist = document.getElementsByName(groupname); for(var i =0;i<radlist.length;i++) { alert(radlist[i].value); } } <input type = 'radio' name = "radio1" value = "1"/>第一个<br/> <input type = 'radio' name = "radio1" value = "2"/>第二个<br/><br/> <input type = 'radio' name = "radio2" value = "2-1"/>第一个<br/> <input type = 'radio' name = "radio2" value = "2-2"/>第二个<br/> <input type = "button" value = "获取值" onclick = "getRads('radio1');"/>
function getRads(){ var radlist = document.getElementsByTagName("input"); for(var i =0;i<radlist.length;i++) { if(radlist[i].type=="radio" && redlist[i].checked) alert(radlist[i].value); } }<input type = "button" value = "获取值" onclick = "getRads();"/>
<!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>js测试</title><script src="jquery-1.3.2.js"></script>
<script>
$(document).ready(function(){
var i = 0;
$("input[type=radio]").each(function(){
if($(this).is(":checked")){
i++;
}
});
alert("共"+i+"个被选中")
});
</script>
</head>
<body> <input class="test" type="radio" checked="checked"/>
<input class="test" type="radio"/>
<input class="test" type="radio" checked="checked"/>
<input class="test" type="radio"/>
<input class="test" type="radio"/></body>
</html>
function getRads(groupname){
var radlist = document.getElementsByName(groupname);
for(var i =0;i<radlist.length;i++)
{
alert(radlist[i].value);
}
} <input type = 'radio' name = "radio1" value = "1"/>第一个<br/>
<input type = 'radio' name = "radio1" value = "2"/>第二个<br/><br/>
<input type = 'radio' name = "radio2" value = "2-1"/>第一个<br/>
<input type = 'radio' name = "radio2" value = "2-2"/>第二个<br/>
<input type = "button" value = "获取值" onclick = "getRads('radio1');"/>
function getRads(){
var radlist = document.getElementsByTagName("input");
for(var i =0;i<radlist.length;i++)
{
if(radlist[i].type=="radio" && redlist[i].checked)
alert(radlist[i].value);
}
}<input type = "button" value = "获取值" onclick = "getRads();"/>