Calling Struts using Javascript

My web page has a drop down box, and I want to call struts action as soon as the value changes from the drop down. (Basically submit a form using JavaScript on "onchange" event of dropdown)

Can someone give me a direction for such JavaScript?

example would be

JSP

Code:

---

<html:form action="/someAction" method="POST">

Struts-config.xml
<action path="/someAction" type="com.SomeAction" name="someForm"
parameter="action" scope="request" input="someinput">
<forward name="someLocalActn"
path="/someAction?action=display"></forward>
</action>

---

Thanks.

I think you can do it like this:

Code:

---

<html:select onclick="javascript:doABC(this);">
....

....

<script language="javascript">

function doABC(sel) {
var form = document.forms[i];//here i depends on which form you want
to submit.
//or you can define it in
the case sentence.
switch(sel.value) {
case "A":
form.action = "...";
form.submit();
break;
case "B":
form.action = "...";
form.submit();
break;
case "C":
form.action = "...";
form.submit();
break;
}
}

---

I am getting "Object doesn't support this property or method"