$(document).ready(function () {

  $('#sb_form_q').focus(function () {
    if ($(this).val() == 'Enter your search term') {
      $(this).val('');
      $(this).addClass('focused');
    }
  }).blur(function () {
    if ($(this).val() == '') {
      $(this).val('Enter your search term');
      $(this).removeClass('focused');
    }
  });
});

function CheckSearchForm() {

  if ($('#sb_form_q').val() == 'Enter your search term') {
    $('#sb_form_q').val('');
  }

  return true;
}