function search_type(lang){
	if ((document.getElementById('idOffice').value) != '') {
		document.searchform.action = '?idPage=4&lang=' + lang;
		document.searchform.submit();
	} else if ((document.getElementById('idUser').value) != '') {
		document.searchform.action = '?idPage=3&lang=' + lang;
		document.searchform.submit();
	} else if ((document.getElementById('idReference').value) != '') {
		document.refform.action = '?idPage=5&lang=' + lang;
		document.refform.submit();
	}
}