463539 Hard to explain pop up script

the example i had to show what i want is now taken off the website where i got the idea so I'll have to do my best in explaining what I need my website is promoting a product. once the visitor clicks on my link to go check out the product, I want a little script to pop up and say "Checking Quantity" in flashing text for about 4 seconds before the user is taken to the product page can this be done?