google.load('search', '1.0');

function OnGgleLoad() {
    var searchControl = new google.search.SearchControl();

    var webSearch = new google.search.WebSearch();
    var options = new google.search.SearcherOptions();
    options.setExpandMode(google.search.SearchControl.EXPAND_MODE_OPEN);
    webSearch.setSiteRestriction("dansk.de");

    searchControl.addSearcher(webSearch, options);

    searchControl.setNoResultsString("Leider wurden keine Übereinstimmungen gefunden.");
    searchControl.setLinkTarget(google.search.Search.LINK_TARGET_SELF);
    searchControl.draw(document.getElementById("dansk_searchcontrol"));
}

google.setOnLoadCallback(OnGgleLoad, true);