function checkSubmit()
{
  var control = $('control');
  var type_s = $('select[name=kwota]').val();
  var type_t = 0;
  
  if(type_s == "20")
  {
    type_t = 8;
  }
  else if(type_s == "25")
  {
    type_t = 3;
  }
  else if(type_s == "35")
  {
    type_t = 1;
  }
  else if(type_s == "45")
  {
    type_t = 4;
  }
  else if(type_s == "75")
  {
    type_t = 5;
  }
  else if(type_s == "95")
  {
    type_t = 7;
  }
  else if(type_s == "120")
  {
    type_t = 9;
  }
  else if(type_s == "150")
  {
    type_t = 10;
  }
  else if(type_s == "200")
  {
    type_t = 11;
  }
  
  if(type_t == 0)
  {
    alert('Wybierz formułę');
  }
  else
  {
    var event = $('input[name=event]').val();
    var ad_n = $('input[name=hidden_item_id]').val();
    
    $('input#control').attr('value', encode64(event+ad_n+'-FEA'+type_t));
    return true;
    return false;
  }
  return false;
}
var keyStr  = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
var alfabet = 'abcdefghijklmnopqrstuvwxyz';
function encode64(input) {
   var output = "";
   var chr1, chr2, chr3; var enc1, enc2, enc3, enc4; var i = 0;
   do {
      chr1 = input.charCodeAt(i++);
      chr2 = input.charCodeAt(i++);
      chr3 = input.charCodeAt(i++);

      enc1 = chr1 >> 2;
      enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
      enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
      enc4 = chr3 & 63;
      if (isNaN(chr2)) {
         enc3 = enc4 = 64;
      } else if (isNaN(chr3)) {
         enc4 = 64;
      }
      output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + 
         keyStr.charAt(enc3) + keyStr.charAt(enc4);
   } while (i < input.length);   
   return output;
}