var _MSG	= { "lang_1"	:	{"empty":"Nem adott meg keres"+ch(233)+"si felt"+ch(233)+"telt!"},
		    "lang_2" 	:	{"empty":"You did not specify the conditions!"}
		  };
		  
function checkKottaSearch(form)
 {
  var fields = new Array("cim","szerzok","kiadas_szama","hangszereles");
  var ok = false;
  for (var i=0; (i<fields.length) && (!ok); i++)
   ok = ok || (trim(form[fields[i]+"_value"].value)!="");
  if (ok) return true;
  if (form.tartalom_checkbox.checked && (trim(form.cim_value.value)!="" || trim(form.szerzok_value.value)!=""))
   return true;
  else
   {
    alert(_MSG["lang_"+LANG].empty);
    return false;
   }
 }

function disableChange(id)
 {
  var form = document.kottaSearchForm;
  form[id+"_value"].disabled = !form[id+"_checkbox"].checked;
 }