Place javascript processing different server

I have a plugin I developed using CMB to retrieve data entered in a form, process it and query a post type:

function search_and_view() {
ob_start();;
?>

<div class="search-form">
<form action="" id="result-form" method="post" style = "text-align:left">
<div class="form-row">

<label for="reg"> Team Reg:</label>
<select type="text" id="team-reg" name="team_reg" >
<option>Team 1</option>
<option>Team 2</option>
<option>Team 3</option>
</select><br />

<label for="team-year">Term:</label>
<select type="text" id="team-year" name="team_year" >
<option >2015/2016</option>
<option >2016/2017</option>
<option>2017/2018</option>
</select>
<br />
<input type="submit" value="View Search Result" class="result-submit" name="result-query-submit" /> <img class="loader" src="<?php echo plugin_dir_url(__FILE__).'images/spiningball.gif' ?>" />
</form>
<?php $team_vs = ob_get_clean();
return $team_vs;
}

Users fill the form, submit, it’s listened to by javascript(in a separate file):

jQuery(document).ready(function($){
	$('#result-form').submit(function(e){
		e.preventDefault();

		var team_reg = $('#team-reg').val();
		var team_year = $('#team-year').val();

		$.ajax({
			type: 'POST',
			url:  '../wp-admin/admin-ajax.php',
			data: {
				action: 'result_view_admin',
				teamreg: team_reg,
				teamyear: team_year,
			},
                     ...

which retrieves the variables and sends them to function(result_view_admin) to query the post type and display the corresponding query result.

Now all is working fine as it is, but I want the javascript code to run on a different server(www.myhostingserver.com) other than the one the plugin is installed on(www.usershostingserver.com). Such that users on submitting make a call to our server which retrieves the form data then responds to the function result_view_admin on the users server to query the custom post.
How do I go about this?