var digest = '';

function SoftwareVote(softwareID, value)
 {
  new Ajax.Updater('rating' + softwareID,
                   '/ajax/software_vote.html?' + Math.random(),
                   {asynchronous: true, 
                    method: 'post',
                    parameters: 'digest=' + digest + 
                               '&softwareID=' + softwareID + 
                               '&value=' + value});

  return false;
 }