The script is Simple:
When user visits the website, there will be a time counter appear (counting from 5 to 0). When it reaches 0 second, a php code will be process and the time counter will disapear (without refreshing the page).
Example:
After view 5 seconds
sql="UPDATE...........";
Prices:
5$ in BTC (for the default design)
5$ in BTC/ hour (for a custom design)
5$ in BTC / hour if you wan't me to install the script