JavaScript Application Cookbook

Potential Extensions

Let’s look at a few ways to take this application further.

Add a Link Back to Cyber Greetings

Why not add a link back to the Cyber Greetings site? You can do so by adding the following code to function genGreeting() in front.html:

+ ' <A HREF="' + top.baseURL + '/index.html">Go To Cyber Greeting</A>';

This assumes that index.html, front.html, and back.html are all located in the directory referred to in baseURL. If not, replace top.baseURL in the above statement with the hardcoded URL you want to use.

Add Image Themes

This application is begging for image themes. Christmas, Valentine’s Day, St. Patrick’s Day, Halloween, just about anything you can think of. No need to focus on holidays. You can use seasonal backgrounds and matching icons, get well or happy birthday themes, or just about any other topic you want to include.

Banner Ad Campaigns

If you’re going to let people use this service for free, why not generate a little revenue? In your shipGreeting() function, you could use some logic to choose a banner and embed the I MG tag code at the bottom of the greeting. If you use themes as mentioned previously, you could assign banners that correspond to the theme chosen.

Make the Greetings More Interactive

This application uses JavaScript events to create custom greetings. Custom, yes, but not very interactive. Try sending people greetings with image rollovers or things to click or move around. If you have a cool Java applet or two, you could offer ...