var _sid = '';
var current = 0;
var has_user_vote = 0;

function handleOver(post_id, vote)
{
  if(has_user_vote == 0)
    draw_stars(vote);
}

function handleOut(post_id, vote)
{
  draw_stars(current);
}

function handleClick(post_id, vote)
{
  new Ajax.Updater({ success: 'rating_div' }, 'ajax_com.php', {
    parameters: { action: 'vote', vote: vote, post_id: post_id, sid: _sid },
    evalScripts: true    
  });  
}

function draw_stars(rating)
{
  for(i=1; i<=rating; i++)
  {    
    $('star_' + i).src = 'images/star_on.gif';
  }
  for(j=i; j<=5; j++)
  {
    $('star_' + j).src = 'images/star_off.gif';
  }
}