/**************************************************************************
*	funkce pro potvrzovani akci onClick a onSubmit
***************************************************************************/
function confirm_action(text)
{
	var agree=confirm(text);
if (agree)
	return true ;
else
	return false ;
}

var multiselectLimit = 5; 
var selectedIndexes = {}; 
  
function restrictSelectedCount(selectElem, limit, text) 
{ 
   var opts = selectElem.options; 
   var selectedOptions = 0; 
   for(i = 0; i<opts .length; i++) 
   { 
      if (opts[i].selected){ 
         selectedOptions++; 
         if (selectedOptions > limit){ 
            opts[i].selected = false; 
         } 
      } 
       
   } 
  
    
  
   if (selectedOptions >= limit){ 
      alert(text); 
      return false; 
   } 
  
   return true 
}