How do you access html attributes from an Event?

Hi,
Is there a way to access the VALUE of this html tag in the event code?
Html:
<input type="IMAGE" id="testId" src="images/sort_ascending.gif" name="event_Sort" value="ASC" />
Event Code:
public void onSort(DataActionContext ctx)
// Code before executing the default action
//if (ctx.getEventActionBinding() != null) ctx.getEventActionBinding().doIt();
// Code after executing the default action
}

Duncan or anyone,
Any Ideas why I can not get this to work?
I do not get the value "ASC" in a prameter "event_Sort".
I do get Two Parameters event_Sort.x & event_Sort.y.
I believe they represent the coordinates on the image that I clicked?
Here is all my code simple to the core:
JSP Page:
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<%@ page contentType="text/html;charset=windows-1252"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>untitled</title>
</head>
<body>
<form action="action1.jsp">
<input type="image" src="images/sort_ascending.gif" name="event_Sort" value="ASC"/>
</form>
</body>
</html>
Java Event Code:
package mypackage3;
import javax.servlet.http.HttpServletRequest;
import oracle.adf.controller.struts.actions.DataForwardAction;
import oracle.adf.controller.struts.actions.DataActionContext;
public class Action1Action extends DataForwardAction
// To handle an event named "yourname" add a method:
// public void onYourname(DataActionContext ctx)
// To override a method of the lifecycle, go to
// the main menu "Tools/Override Methods...".
public void onSort(DataActionContext ctx)
// Code before executing the default action
//if (ctx.getEventActionBinding() != null) ctx.getEventActionBinding().doIt();
// Code after executing the default action
HttpServletRequest request = ctx.getHttpServletRequest();
String sortValue = request.getParameter("event_Sort");
System.out.println(sortValue);
}

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