// vlozeni smajlika
function AddSmile( control, smile )
{   
  document.getElementById(control).value += " " + smile + " ";
  document.getElementById(control).focus();
}  

// potvrzeni
function ConfirmOper( operation )
{   
 return confirm( operation );  
}  


// kontrola velikosti vstupnich poli
function CheckSize( control )
{ 
 if( !control ) return;
  var maxlen    = 500;
  var textarea  = control.body; 
  var inside    = textarea.value.length;
  var remain    = maxlen - inside;

  if( inside > maxlen )
  {
    alert( "Váš komentář je příliš dlouhý!" );
    textarea.value = textarea.value.substring( 0, maxlen );
    remain = 0;
  }
  control.remain.value = remain;
}