google.load("search", "1");

function OnLoad() {
  
  var wrapper = document.getElementById('searchcontrol');
  wrapper.style.display = 'block';
  
  var searchControl = new google.search.SearchControl();
  searchControl.setResultSetSize(GSearch.LARGE_RESULTSET);
  searchControl.setLinkTarget(GSearch.LINK_TARGET_SELF);

  var options = new GsearcherOptions();
  options.setExpandMode(GSearchControl.EXPAND_MODE_OPEN);

  var webSearch = new google.search.WebSearch();
  webSearch.setSiteRestriction("018237110792382882123:knrt_lv8kz4");
  // webSearch.setSiteRestriction("channel4.com");
  webSearch.setUserDefinedLabel("Search the book");
  searchControl.addSearcher(webSearch, options);
  searchControl.setNoResultsString(GSearchControl.NO_RESULTS_DEFAULT_STRING); // order is significant for no good reason

  var drawOptions = new GdrawOptions();
  drawOptions.setDrawMode(GSearchControl.DRAW_MODE_TABBED);
  searchControl.draw(document.getElementById("searchcontrol"), drawOptions);
  
  var searchinputs = wrapper.getElementsByTagName('input');
  for(var i=0; i<searchinputs.length; i++)
  {
    if(searchinputs[i].className == 'gsc-search-button')
    {
      searchinputs[i].value = 'Go';
    }
  }
}
google.setOnLoadCallback(OnLoad);