获取radio的值

html code

<form id=form1>

 <input type="radio" name="groupradio" value="1" onclick="test()"/>1

<input type="radio" name="groupradio" value="2" onclick="test()" />2</form>

 

jscript code

function test(){  

var radioobj =document.all.groupradio; 

//兼容ff, var radioobj =document.inputForm.groupradio; 

var value="";

for (var i = 0; i < radioobj.length; i++) {

if (radioobj.item(i).checked) {

value = radioobj.item(i).value;

}

}alert(value); }