javascript error with isajax=1 and feature request

Hello

1) when using the shortcode with ‘isajax’:

[flexiblemap isajax="1" address="Paris - France" width="500px" height="250px"]

i have this javascript error :
“Uncaught ReferenceError: FlexibleMap is not defined”

Could you include this fix an your next update ?
in includes/class.FlxMapPlugin.php line 483
replace

var $varID = (function() {
$script return f;
})();

with

var $varID = function() {
$script return f;
};

it will replace the autoevalute function with a simple funtion, the FlexibleMap object is not available because the js file is loaded later in the footer

2) other point :feature request
in flexible-map.js ishidden() line 266
replace

return style.display === "none";<br />

width

if(style.display === "none" || style.visibility === "hidden" ) return true; else return false;

https://ww.wp.xz.cn/plugins/wp-flexible-map/