$(document).ready(function() {
$('#sub').click(function(e) {

var fname = $('#fname').val();
var lname = $('#lname').val();
var email = $('#email').val();
var age = $('#age').val();
var username = $('#Username').val();
var Password = $('#Password').val();
var CPassword = $('#CPassword').val();
var username_flag = false;

var name_regex = /^[a-zA-Z]+$/;
var email_regex = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
//var add_regex = /^[0-9a-zA-Z]+$/;
$("#Username").blur(function() {
$.ajax({
url: "./display.php",
data:'Username='+$("#Username").val(),
type: "POST",
success:function(data){
console.log(data);
if(data == "true"){
$("#user-availability-status").html("not avilable");
username_flag = true;
}
else{
username_flag = false;
$("#user-availability-status").html("avilable");
}
},
});
});

if (fname.length == 0) {
$('#head').text("* All fields are mandatory *");
$("#fname").focus();
return false;
}

else if (!fname.match(name_regex) || fname.length == 0) {
$('#p1').text("For your first name please use alphabets only ");
$("#fname").focus();
return false;
}

else if (!lname.match(name_regex) || lname.length == 0) {
$('#p2').text(" For your last name please use alphabets only");
$("#lname").focus();
return false;
}

else if (!email.match(email_regex) || email.length == 0) {
$('#p3').text("Please enter a valid email address");
$("#email").focus();
return false;
}

else if (isNaN(age)||age<1||age>100){
$('#p4').text("Please enter a valid age");
$("#age").focus();
return false;
}


else if ((!(username.length >= 6 ) || username.length == 0) && username_flag == true ) {
$('#p5').text(" Please enter above 6 characters and username avilable");
$("#username").focus();
return false;
}

else if(!(Password.length >=6) || Password.length ==0){
$('#p6').text("Please enter above 6 characters");
$("#Password").focus();
return false;
}

else if(Password!=CPassword){
$('#p7').text("password do not match");
$("#Password").focus();
return false;
}

else {

	$.ajax({
		type :"POST",
		url :"insert.php",
		data: datastring,
		cache: false,
		success: function(result){
			alert(result);
		}
	});
// alert("Form Submitted Successfuly!");
// return true;
}
});
});