function $(id)
{
	return document.getElementById(id);
}


function gong_to_nong(SiteUrl)
{
	var year  = $('gyear').value;
	var month = $('gmonth').value;
	var day   = $('gday').value;

	if (year == '' || month == '' || day == '') {
		return false;
	}

	location.href = SiteUrl+'index.php/index/gongli/'+year+'-'+month+'-'+day+'.html';
}

function nong_to_gong(SiteUrl)
{
	var year  = $('nyear').value;
	var month = $('nmonth').value;
	var day   = $('nday').value;

	if (year == '' || month == '' || day == '') {
		return false;
	}

	location.href = SiteUrl+'index.php/index/nongli/'+year+'-'+month+'-'+day+'.html';
}