Chapter 37. JavaScript
JavaScript is the scripting language that controls most of today's popular web browsers. It can be used in a number of ways, including:
Validating online form data prior to submitting it your server
Setting and reading browser cookies
Sending your browser to a different page
Opening new browser windows
Text and image effects
Loading new content without changing the page
Displaying syndicated content from other sites
Online calculators (financial, calorie counters, etc.)
Calendar functions
HTML editors
Much more!
If you browse these JavaScript repositories, you will find scores of interesting functions that you can quickly add to your own web pages—many are free but require you to preserve copyright or other attributing language.
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