Brent is creating a client-side script to preload images used in rollovers on his Web site. In order for the images to be preloaded into the browser cache, which JavaScript object should Brent instantiate and point to the location of the needed image?
Jacob runs a Web site specializing in selling music from independent artists. Most of the site's customers want to know about unknown or new artists in the music industry whose work is available on Jacob's site. Site visitors have requested an easier way to learn about updates to the New Artists page. Which of the following will best meet visitors' needs?
The W3C has developed XHTML standards for the World Wide Web. These standards:
The best way to thwart a dictionary attack is by enforcing a: