Thickbox not getting values of textbox using Jquery - php

Question

I used thickbox components in Joomla. I am submitting form using jQuery ajax but jQuery not getting values after click on submit buttons. I used
and created script.js file containing :
jQuery(document).ready(function(){
jQuery('.wp_btn').click(function() {
var id = $j(this).attr('id');
var url = $j(this).attr('value');
if (document.cookie.indexOf('visited=true') == -1) {
var fifteenDays = 1000*60*60*24*15;
var expires = new Date((new Date()).valueOf() + fifteenDays);
document.cookie = "visited=true;expires=" + expires.toUTCString();
jQuery("#dwnlnk").val(url);
TB_show('', '/#TB_inline?KeepThis=true&id=9876asdvfrty54321&height=250&width=350&inlineId=mypopup&caption=Subscription', '');
}else{
window.location = url;
}
});
//
jQuery(document).on('submit', '#subscription',function(){
return false;
});
jQuery(document).on('click', '#btnSubmit',function(){
var url = jQuery('#dwnlnk').val();
var txtname = $j('input[name=txtname]').val();
var txtemail = $j('input[name=txtemail]').val();
jQuery.ajax({
type: 'POST',
url: 'whitepapers/',
data: jQuery('#frmsubscription').serialize(),
success: function(data) {
alert(data);
//if(data == 'true') {
window.location = url;
//}
}
});
});//end click
});
I already tried document.getElementById('txtname').value but its not getting value of textbox. When I entered static value then its getting value.

Answer 1

You have to use jQuery or $ to select an element.
Try this
var txtname = jQuery('input[name="txtname"]').val();
var txtemail = jQuery('input[name="txtemail"]').val();
OR
var txtname = $('input[name="txtname"]').val();
var txtemail = $('input[name="txtemail"]').val();