cookiepage for my hostingcompany

We got a small hosting company, and as part of our free service towards our clients we need similar function/page as [login to view URL] Means my clients can download piece of javascript , put it into their website , and in header a hidden div appears which can be closed when accepting cookies. Beware that the example is in footer, but i want it on top of the website! Script is free to use for my clients, and also non-clients, but i want my link in as image (like get your free cookie message from company name when mouseover or click) Must be sophisticated , like example. We got download section (WHMSC panel) where we can upload js code with explanation I need just one page , like example, in my style to explain the working, and select options