javascript - Need To Call Struts Action Class Method Upon selecting radio button -

i need call struts action class method upon selecting 1 radio button (onclick event) using javascript. selection of radio button shall passed parameter action class method. how can achieve this? please me.

<s:form style="margin:5px 10;" action="searchaction" method="post" name="searchform">     <s:radio name="searchtype" label="criteria"          list="{'data element','transaction details'}" requiredlabel="true"         tooltip="your seach done depending upon selected criteria" onclick="func();"/> 

<script language="javascript">     function func() {         var b = document.getelementsbyname()('searchtype').value;         var sub = document.searchform.action + '?searchtype=' + b;           alert(sub);         document.searchform.submit();      } 

you can use javascript call achieve this...submit form javascript function value of selected radio.

 function func() {         var b = document.getelementsbyname()('searchtype').value;         document.searchform.action = "searchaction?searchtype=" + b;         document.searchform.submit();      }