Add this code to your theme's functions.php code to enable geoplugin.com's geotargeting js script and auto-set the country dropdown to the correct country code

functions.php

<?php


/**
*  Adds geotargeting js capabilities to javascript
*/
add_action( 'wp_enqueue_scripts' , 'inbound_add_geotargeting_js' );
function inbound_add_geotargeting_js () {
	wp_enqueue_script( 'geoplugin' , 'http://www.geoplugin.net/javascript.gp');
}

/**
* Sets Inbound Form Country Dropdown field to the correct country code. Field must be mapped to 'Country' in the Inbound Form administration area. '
*/ 
add_action( 'wp_footer' , 'inbound_set_correct_country' );
function inbound_set_correct_country () {
	?>
	<script type='text/javascript'>
		jQuery( document ).ready( function() {
			jQuery( "select[name='wpleads_country_code']" ).val(geoplugin_countryCode());
		});
	</script>
	<?php
}