function check_search(ff) {
	e = gE('flulab_error');
	if (!ff.keyword.value && !ff.country.selectedIndex && !ff.stateCode.selectedIndex) {
		e.innerHTML = 'Please use at least one of the search filters';
		sD(e);
		return false;
	} else {
		b= gE('flulab_submit1');
		b.disabled = true;
		b.value = 'Searching...';
		hD(e);
		return true;
	}
}