var gb_clear = false, gs_clear = '';
	
	
	function search_on_focus(s)
	{
		if (!gb_clear)
		{
			gs_clear = s.value;
			s.value = '';
			gb_clear = true;
		}
	}


	function search_on_blur(s)
	{
		if (gb_clear && s.value == '')
		{
			s.value = gs_clear;
			gs_clear = '';
			gb_clear = false;
		}
	}



	function clear_province(vu_form)
	{
		if (vu_form.province && vu_form.province.selectedIndex) vu_form.province.selectedIndex = -1;
		else if (vu_form.province && vu_form.province.value) vu_form.province.value = '';
	}



	function clear_city(vu_form)
	{
		if (vu_form.city && vu_form.city.selectedIndex) vu_form.city.selectedIndex = -1;
		else if (vu_form.city && vu_form.city.value) vu_form.city.value = '';
	}