var date = new Date();

var year = date.getFullYear();

var month = date.getMonth()+1;

var day = date.getDate();

var hour = date.getHours();

var minute = date.getMinutes();

var second = date.getSeconds();

var strDate=year+"-"+month+"-"+day+" "+hour+";"+minute+":"+second;

$("#AddDateTime").textbox('setValue', strDate);