@(you need an account to see links)
Sorry to bother again.. but I looked into your source code.
I know it's unlikely if I'm the only one encountering problems, but are you sure you aren't missing the javascript function in the <head> section? Couldn't find it in the source code anywhere..
I tried it myself with a blanco page and it's working fine like this (picked leadbolt as example, I don't know which site you're using)..
Code:
<html>
<head>
<script>
function StartGateway(id) {
var head= document.getElementsByTagName('head')[0];
var script= document.createElement('script');
script.type= 'text/javascript';
script.src= 'http://ad.leadbolt.net/show_cu.js?section_id='+id;
head.appendChild(script);
}
</script>
</head>
<body>
<a onClick="javascript:StartGateway(686024070)">click here</a>
</body>
</html>