Pop Up Custom Form Not Working

I am trying to add a custom form in the pop up. When I preview the pop up, my custom form shows up completely fine. But its not showing up when I open my website.

Below is the code I am using

<script type="text/javascript">
form_format='4';
form_title='Get Quotes to Compare';
form_subtitle='Get Quotes to compare';
form_width='450px';
form_lang='en';
form_bgcolor='#FFF1CA';
form_bordercolor='#DDCB9E';
form_fontcolor='#000000';
form_headbg='#A57000';
form_headtext='#FFFFFF';
form_fontfamily='Verdana';
form_typeid='';
form_leadtype='Tour';
form_afid='15033';
form_redirect='';
</script>
<script type="text/javascript" SRC="https://www.hellotravel.com/serveform/serveform.js"></script>