formatDate

function formatDate(pattern, date) {
	function formatNumber(data, format) {
		format = format.length;
		data = data || 0;
		return format == 1 ? data
				: (data = String(Math.pow(10, format) + data))
						.substr(data.length - format);
	}
	return pattern.replace(/([YMDhsm])\1*/g, function(format) {
		switch (format.charAt()) {
		case 'Y':
			return formatNumber(date.getFullYear(), format);
		case 'M':
			return formatNumber(date.getMonth() + 1, format);
		case 'D':
			return formatNumber(date.getDate(), format);
		case 'w':
			return date.getDay() + 1;
		case 'h':
			return formatNumber(date.getHours(), format);
		case 'm':
			return formatNumber(date.getMinutes(), format);
		case 's':
			return formatNumber(date.getSeconds(), format);
		}
	});
}

 

function formatDate(date) {
    if (date != null) {
        if (date.getMonth() + 1 < 10 && date.getDate() > 9)
            var dateString = "0" + (date.getMonth() + 1) + "/" + date.getDate() + "/" + date.getFullYear();
        else if (date.getMonth() + 1 < 10 && date.getDate() < 10)
            var dateString = "0" + (date.getMonth() + 1) + "/0" + date.getDate() + "/" + date.getFullYear();
        else if (date.getMonth() + 1 > 9 && date.getDate() < 10)
            var dateString = (date.getMonth() + 1) + "/0" + date.getDate() + "/" + date.getFullYear();
        else
            var dateString = (date.getMonth() + 1) + "/" + date.getDate() + "/" + date.getFullYear();

        return dateString;
    } else {
        return "";
    }
}