Countup from page enter

Does anybody have a script that will automatically start counting up when a member enters the page, and IS NOT able to be pasued, nor stopped?

I've been searching around, and can only find scripts that count up from a pre-defined date (example: december 1990), which isn't what I'm looking for.

Hello,

This website might be able to help you.

=> http://www.freecountercode.com/

Also, you should add the code you get to an html source page,

Not exactly what I'm looking for.

I'm not looking for a hit counter, but a timer that will start exactly when a member enters the page. I ONLY need them to be able to see it, I'm not asking for a counter that will record, or anything fancy, just client side only.