<script>var d = new Date();
var time = d.getHours();
if ( time > 18) {
document.getElementById('section1').style.backgroundImage = "url('img/bg2.jpg')";
document.getElementById('utm_title').style.color = "#fff";
document.getElementById('utm_desc').style.color = "#fff";
}
</script>
$(document).ready(function() {
$("head").append("<link rel='stylesheet' type='text/css' href='/styles.css' />");
})