var uword = null;

function validate_captcha(){
    
    uword = $F('uword_control');
    return true;

}

function validate_comments(){

  if(validate_captcha()){}
  
  $('comments_error').hide();
  $('comment_body').setStyle({border: '1px solid #CCC'});
  $('uword').setStyle({border: '1px solid #CCC'});
  $('comment_name').setStyle({border: '1px solid #CCC'});
  
  var md5ed = $('uword').value;
  var isvalid = (md5ed == uword) ? true : false;
  
  if(isvalid){
    if($F('comment_body') && $F('comment_name')) return true;
  }
  
  if(!$F('comment_body')) $('comment_body').setStyle({border: '1px solid #C00'});
  if(!$F('comment_name')) $('comment_name').setStyle({border: '1px solid #C00'});
  if(!isvalid) $('uword').setStyle({border: '1px solid #C00'});
  
  
  $('comments_error').show();
  setTimeout("$('comments_error').hide()", 2000);
  
  return false;

}