property for radio buttons

[swapnanair]

I am using struts, while designing a jsp page i am getting an error.
For radio buttons i wrote

<html:radio property="xxx" value="yes">yes</html:radio>
<html:radio property="xxx" value="no">no</html:radio>

but when i try to get this value

alert(document.forms[0].elements['xxx'].value);

i am getting as undefined.can any one help me regarding this one as how to define radio buttons with same property in struts

[achillesheel]

id attribute value should be used in javascript...

<html:radio property="xxx" value="yes" id="idname">yes</html:radio>

alert(document.forms[0].elements['idname'].value);

try this..

[swapnanair]

First of all thanks for ur reply,i have already tried with id but still i am unable to get the value.

errorrg.apache.jasper.JasperException: /jsp/login/ProjectStudyCrop.jsp(56,8) Attribute id invalid for tag radio according to TLD