function get_member_age(birthday)
{
	if(birthday == "1900-01-01 00:00:00.0"){
		return "";
	}

	var d1=parse_date(birthday);
	var nowTime   = new Date();
	var the_year  = nowTime.getYear();
	var age_year = d1.getYear() + 1900;
	return (the_year - age_year) > 0 ? (the_year - age_year) : (the_year - age_year + 1900);
	
}
function parse_date(str){
	var year=str.substring(0,4);
	var tempmonth=str.substring(5,7);
	var month=(parseInt(tempmonth)-1)+"";
	var day=str.substring(8,10);
	var hours=str.substring(11,13);
	var minute=str.substring(14,16);
	var second=str.substr(17,2);
	return new Date(year,month,day,hours,minute,second);
}