function gotofind(){
   var q = document.searchform.q.value;
   //var contratto_id = document.searchform.contratto_id.value;
   window.location.href='ricerca-libera.php?q='+q;
}
  
function trim(stringa){
  while (stringa.substring(0,1) == ' '){
      stringa = stringa.substring(1, stringa.length);
  }
  while (stringa.substring(stringa.length-1, stringa.length) == ' '){
      stringa = stringa.substring(0,stringa.length-1);
  }
  return stringa;
}
  
function ctrlKeywords(){
  if(trim(document.searchform.q.value) == ''){ 
	  alert('Inserire i termini di ricerca.'); 
	  return false; 
  }else{ 
	  document.searchform.submit();
	  return true;
  }
}