if (Prototype.Browser.WebKit) {
  Event.observe(document, 'dom:loaded', switchSearchFields);
  }

function switchSearchFields()
{
  // WebKit-based browsers support slightly enhanced 
  var searchboxes = $$('input.search[type="text"]');

  for (i=0; i<searchboxes.length; i++) {
    var sb = searchboxes[i];

    sb.writeAttribute('type', 'search');
    sb.writeAttribute('placeholder', 'Search IBC');
    sb.writeAttribute('autosave', 'indianabusinesscollege');
  }
}