Как заменить окно на mgnific (поправить AJAX)?

$.magnificPopup.open({
	items: {
		src: '<div class="px-3 pb-4" style="width:540px;background:#FFF;position:relative;margin:0 auto;"><br><b><i class="icon-speech text-warning mr-2"></i> Написать сообщение: </b>' + name + '<hr>' + data + '<hr> <button class="btn btn-primary" type="submit" id="targetbtn" name="add">Отправить</button></div>'
	},
	type: 'inline',
	mainClass: 'mfp-fade',
	removalDelay: 170,
	overflowY: 'hide',
	closeOnBgClick: true,
	showCloseBtn: true,

callbacks: {
open: function() { $('#dlesendpmpopup').show();
$( "#targetbtn" ).click(function() {
b[dle_p_send] = function() {
		
		if (dle_wysiwyg == "2") {
			tinyMCE.triggerSave();
		}
		
		var subj = 	$('#pm_subj').val();
		var comments = 	$('#pm_text').val();
		var name = 	$('#pm_name').val();
		var question_answer = $('#pm_question_answer').val();	
		var sec_code = $('#sec_code_pm').val();
		var outboxcopy = $( '#outboxcopy:checked' ).val();
		
		var g_recaptcha_response = '';
		
		if (name == '' || comments == '' || subj == '')
		{
			DLEalert ( dle_req_field, dle_info );
			return false;
		}
		
		if ( dle_captcha_type == "1" ) {

			if ( typeof grecaptcha != "undefined"  ) {
				g_recaptcha_response = grecaptcha.getResponse(recaptcha_widget);
			}

		} else if (dle_captcha_type == "2") {
			g_recaptcha_response = $('#pm-recaptcha-response').val();
		}

		if (!outboxcopy) {
			outboxcopy = 0;
		}
		
		if (!sec_code) {
			sec_code = '';
		}
		if (!question_answer) {
			question_answer = '';
		}

		ShowLoading('');
	
		$.post(dle_root + "engine/ajax/controller.php?mod=pm", { action: 'send_pm', subj: subj, comments: comments, name: name, skin: dle_skin, sec_code: sec_code, question_answer: question_answer, g_recaptcha_response: g_recaptcha_response, outboxcopy: outboxcopy, user_hash: dle_login_hash}, function(data){
	
			HideLoading('');
			
			if ( data.success ) {
				$('#dlesendpmpopup').remove();
				DLEalert ( data.success, dle_info );
			} else if (data.error) {
				
				if (dle_captcha_type == "2") {
					if ( typeof grecaptcha != "undefined"  ) {
						var recaptcha_public_key = $('#pm-recaptcha-response').data('key');
						grecaptcha.execute(recaptcha_public_key, {action: 'pm'}).then(function(token) {
						$('#pm-recaptcha-response').val(token);
						});
					}
				}
					
				DLEalert ( data.error, dle_info );
			}
	
		}, 'json');
		
		return false;
	};
});
}	 
}
		
});