How to update local Phonegap / Cordova index.html file remotely

I'm trying to load data to my index file remotely. I am able to do it locally with:

<body align="center" style="background-color: #ded1c1" id="chk">
<script>
$(function(){
    $('#chk').load('a.html');
});
</script>
</body>

Which works flawlessly but it is really no use to me as I can't update the a.html file remotely. What I'm looking to achieve is something like this:

$(function(){
    $('#chk').load('ftp:/chkblabla.com/public_html/a.html');
});

But of course this doesn't load my data. Can it be done any other way? At the end, my goal is to load some string values to my app without having to make another build.