How long was my visitor on my website?

Hello,
if you use this Code for your Website, your visitor can see how long he was on your page.

Paste this code in side script code
Paste in your blogs or website and test... else

Follow my guidance for paste the code here!!

Good luck
-Amaresh

Code:--

function time()
{
i++;
}
var i=0;
setInterval('time()',1000);
window.onunload=now;
function now()
{
alert("You was "+i+" seconds here");
}