in js/index.js [1:14]
$( "button" ).on( "click", function() {
var inputAccountName = $('#account').val();
var postingsCode = "<div id='lever-jobs-container'></div><script type='text/javascript'>window.leverJobsOptions = {accountName: '" + inputAccountName +"', includeCss: true};</script><script type='text/javascript' src='https://andreasmb.github.io/lever-jobs-embed/index.js'></script>";
$(".success, .error").remove();
if (inputAccountName.length) {
$("#code").append('<p class="success">'+postingsCode+'</p>');
} else {
$("#code").append('<p class="error">You need to enter your account name</p>');
}
});