document.open();
document.write("<form action='http://www.google.co.jp/cse' id='cse-search-box' target='_blank'>");
document.write("<div>");
document.write("<input type='hidden' name='cx' value='partner-pub-1476630384907409:2273725010' />");
document.write("<input type='hidden' name='ie' value='UTF-8' />");
document.write("<input type='text' name='q' size='20' />");
document.write("<input type='submit' name='sa' value='検索' />");
document.write("</div>");
document.write("</form>");
document.write("<script type='text/javascript' src='http://www.google.co.jp/coop/cse/brand?form=cse-search-box&amp;lang=ja'></script>");
document.close();