// now needs JQuery
sS hjs_autoExpandingTextAreas() {
  ret
    hcss([[
      textarea.auto-expand {
        max-height: 30em; vertical-align: top;
      }
    ]])
  + hjs([[
    var autoExpandTextArea = function (field) {
      field.style.height = "1px";
      
      // Get the computed styles for the element
      var computed = window.getComputedStyle(field);
      
      var h = field.scrollHeight
        + parseInt(computed.getPropertyValue('border-top-width'))
        + parseInt(computed.getPropertyValue('border-bottom-width'));
    
      field.style.height = h + 'px';
    };
  
    document.addEventListener('input', function (event) {
      if (event.target.tagName.toLowerCase() !== 'textarea') return;
      if (!event.target.classList.contains("auto-expand")) return;
      autoExpandTextArea(event.target);
    }, false);
  
    $(document).ready(function() {
      $("textarea.auto-expand").each(function() { autoExpandTextArea(this); });
    });
  ]]);
}