Looking for syntax error in script provided by vendor

Hello!

I am a designer and am producing an html5 banner for my client using Edge. The adserver they are using requests that this simple javascript be inserted into the html to pass some tracking info. But Dreamweaver says there is a syntax error whenever i add the js. Here it is:

<script type="text/javascript">
var clickTAG = "<!mpvc/>http://<!mpck/>";
document.location = clickTAG;
</script>


Can anyone tell me what the syntax error is? Thank you!