function setUniq() {
uniq='pwp_5c90ecfa5b155';
}
setUniq();

<div id="fb-root"></div>
<script src="https://pwp.uscho.com/wp-content/themes/uscho2015/javascript/pwp2016_a.js" type="text/javascript"></script>
<script type='text/javascript'>
loadPWP(uniq);
</script>