This ensures its execution every time the page is loaded. Whenever a user accesses this page, the first encounter he'll have will look like the following figure. Disclaimers the wave of the future. Or, just cook up something that's different every time a user loads it. Try changing the color, the text that's displayed, or both.
Many users create pages that never change again, which results in a certain staleness.
You can include the preceding items in your program to spice up a page without requiring a lot of owner maintenance. To see how it works, write a script that randomly picks a URL from a list and takes the user there at the click of a button. The design behind this should be comprehensible by now. An array of URLs to choose from. Using the window object's URL loading method, create a sequence of pages that automatically take the user from one page to the next.