function frmSearch_onSubmit(theForm) {
  theForm.querystring.value = theForm.querystring.value.toString().replace(/^ *(.*)/,"$1");
  theForm.querystring.value = theForm.querystring.value.toString().replace(/([^ ]) +$/,"$1");
  theForm.querystring.value = theForm.querystring.value.toString().replace(/ /g,'+');
  if (theForm.querystring.value != '') return true;
  alert('Please enter some text and try your search again.');
  return false;
}

window.document.writeln('<table cellspacing="5" cellpadding="0" border="0" style="margin-'+params.reverseTextAlign+':0px; margin-'+params.generalTextAlign+':auto;">');
window.document.writeln('<tr valign="baseline">');
/*window.document.writeln('<form onSubmit="return frmSearch_onSubmit(this);" name="frmSearch" method="post" action="http://www.fao.org/waicent/search/default.asp" target="FAOSearch">');
window.document.writeln('<input type="hidden" name="lang" value="'+params.lang+'" />');
window.document.writeln('<td class="topsearch"><input type="search" size="10" value="" onmouseover="this.focus();this.select()" name="querystring" placeholder="FAO free text search" autosave="FAOsite" results="10" /></td>');
window.document.writeln('<td class="topsearch"><a href="javascript:if(frmSearch_onSubmit(document.frmSearch))document.frmSearch.submit();void(0);">'+params.searchButton+'</a></td>');
window.document.writeln('</form>');
window.document.writeln('</tr>');
window.document.writeln('</table>');*/

if (params.lang=='en')
    action="http://www.fao.org/newsroom/query_en.html";
if (params.lang=='es')
    action="http://www.fao.org/newsroom/query_es.html";
if (params.lang=='fr')
    action="http://www.fao.org/newsroom/query_fr.html";
if (params.lang=='ar')
    action="http://www.fao.org/newsroom/query_ar.html";
if (params.lang=='zh')
    action="http://www.fao.org/newsroom/query_zh.html";
if (params.lang=='it')
    action="http://www.fao.org/newsroom/query_it.html";
if (params.lang=='ru')
    action="http://www.fao.org/newsroom/query_ru.html";
<!-- Google CSE Search Box Begins -->
  window.document.writeln('<form id="searchbox_005190663797809672052:arlk5b9g2mu" action="'+action+'">');
    window.document.writeln('<input type="hidden" name="cx" value="005190663797809672052:arlk5b9g2mu" />');
    window.document.writeln('<input type="hidden" name="cof" value="FORID:11" />');
    window.document.writeln('<td class="topsearch"><input name="q" type="text" size="40" /></td>');
    window.document.writeln('<td><input type="submit" name="sa" value="'+params.searchButton+'" size="5" /></td>');
  window.document.writeln('</form>');
  window.document.writeln('<script type="text/javascript" src="http://www.google.com/coop/cse/brand?form=searchbox_005190663797809672052:arlk5b9g2mu&lang=en"></script>');
<!-- Google CSE Search Box Ends -->

window.document.writeln('</tr>');
window.document.writeln('</table>');