function truncate (trunc, len) {
  return truncateEllipses (trunc, len);
} 

function truncateEllipses (trunc, len) {
  if (trunc.length > len)     
	trunc = trnc(trunc, len, '...');
  
  return trunc 
}
function truncateSquares(trunc, len) {
  if (trunc.length > len)     
	trunc = trnc(trunc, len, ' [...]');
  
  return trunc 
}

function trnc (trunc, len, chars) {
  if (trunc.length > len) {
    /* Truncate the content of the P, then go back to the end of the
       previous word to ensure that we don't truncate in the middle of
       a word */
    trunc = trunc.substring(0, len);
    trunc = trunc.replace(/\w+$/, '');

	trunc = rtrim(trunc);   

	/* Add an ellipses to the end */
    trunc += chars;
  }
  return trunc;
}

function rtrim(s){
	return s.replace(/\s\s*$/, '');
}