Zones / Forms in a loop - Which iteration invoked the action?

[Lenny Primak]

<t:loop source="...">
  <t:zone update="none">
    <form t:type="form" zone="^">
    <input t:type="submit" event="start" value="Start"/> 
   </form>
 </t:zone>
</t:loop>

... Java

onStart()
{
  // how do I know which one of the start buttons got pushed?
 // there are n possibilities since there are n loop iterations
  return zone.getBody();
}


Thanks for your help!

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